SONY CXA1700AQ

CXA1700AQ/AR
Luminance and Color Signal Processing for 8mm VCR
For the availability of this product, please contact the sales office.
Description
The CXA1700AQ/AR is an IC designed for 8mm
VCR Y/C main signal processing for consumer use.
CXA1700AQ
64 pin QFP (Plastic)
CXA1700AR
64 pin LQFP (Plastic)
Equipped with many built-in filters, the
CXA1700AQ/AR is a one-chip main signal
processing system that greatly reduces the number
of external components.
Features
• Built-in auto-adjusting filters
• Supports simple Hi-8 video.
• Supports camera recording.
• Supports power saving mode.
140mW for composite signal input
250mW for separate signal input
• Supports electronic volume (EVR) control.
• Supports BUS LINE.
• Supports NTSC/PAL.
Structure
Bipolar silicon monolithic IC
Function
2-input INPUT SELECT, VIDEO AGC, DDS (Y
signal superimposition), synchronous separation,
75Ω VIDEO OUT DRIVE, Y/C mixing, Y/C
separation comb filter, Y/C cross talk elimination,
playback chroma feedback comb, Y dropout
compensation, Yd playback switching, Y signal H
correlation detection, Y pre-emphasis/de-emphasis,
white/dark clipping, clipping compensation,
MOD/DEMOD, HHS/HHS cancel, ACC, chroma
emphasis/de-emphasis, burst emphasis/deemphasis, XO/VXO, APC, AFC, APC ID, AFC ID,
burst ID, ACK, APC compensation, HHK, PI/PS,
frequency conversion system, PB C BPF, REC C
LPF, PB C LPF, CARRIER BPF, 4.1V regulator
Absolute Maximum Ratings (Ta=25°C)
• Supply voltage
VCC
7
V
• Operating temperature Topr
–10 to +75
°C
• Storage temperature
Tstg
–65 to +150 °C
• allowable power dissipation
(when mounted on board)
PD CXA1700AQ 1050 mW
CXA1700AR 1010 mW
Operating Condition
• Supply voltage
VCC
4.75 +0.5
–0.25
V
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E94X25-TE
CXA1700AQ/AR
REC L/
JVD
V IN1
AGC TC1
V IN2
WDC
DDS/
MASK
VCC
COMP
SYNC
DL IN1
AGC TC2
DL OUT1
32
31
30
29
28
27
26
25
24
23
22
21
CLAMP
TC2
Y IN
Block Diagram and Pin Configuration
(CXA1700AQ)
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20
CLAMP 33
TC1
Y OUT 34
CLAMP
ON
VIDEO
AGC
AGC OFF
19
DL OUT2
18
CLAMP
TC3
17
NC
CLAMP
PB
CLAMP
INSEL
V OUT 35
GND
VD/HD
INSERT
Y MUTE
DDS
CLAMP
VIDEO
OUT 36
+
+
–
16 AGC TC3
AGC DET
SYNC SEP
+
S • REC+PB
CLAMP 1
VCA 1
REC
INV IN 37
CLAMP 2
DOC TRAP
VCA 2
W • PB
CLAMP 3
SYNC
+
+
+
+ –
+
14 Y COMB
OUT
DOP
+ –
Yd PB
S • REC
+ACK • REC
S • REC
PB
S •REC
+ACK • REC
W •PB
REC
CAR. CONT
DEV. CONT
LIM
ATT
SMEAR. CONT
HHS
Y RF IN 41
LIM
DEMOD
f sc
EQ
+
SHP
THROU
REC
TRAP
E
12 C TRAP
Sharpness
TRAP
REC
SWP
LIM
LPF
13 LIM C
PB
+ –
PB
EDIT
PB • ACK
PB
REC
Yd PB
EQ
MOD
TEST2
Y CORRE DET
+
PB
+ +
RF GND 40
ATT
W • PB
–
HPF
+
COMB
ADJ
S • REC
RF/V 38
VCC
Y RF 39
OUT
15
W • PB
11
VG1
10
DEEMPH
IN
9
COMP TC
8
REC
C OUT
7
DEMOD
OUT
6
NC TC IN
5
EMPH IN
4
SUB
EMPH TC
3
MAIN
EMPH TC
2
MAIN
EMPH OUT
1
C EMPH
CONT
PB+REC • CORR
NO CORR
ATT
SMEAR 42
CONT
BPF
REC • (S+443+EDIT+NO CORR)
CXA1700AQ
DEV 43
CONT
CLIP COMP
NOISE CANCELLER
PB
W/D CLIP
CARR 44
CONT
HARD
CLIP
Y EMPH
BUS
DECODER
REC
CLAMP
HHS CANCEL
Y DE EMPH
SMEAR COMP
SWP
PB C IN 45
REC
SWP 46
HHK
ACC
DET
PB
TEST2
ACC
CONT
SWP
C SEL
BF
CS 47
REC
AFC DET
AFC ID
PB
ACC
AMP
CROMA
EMPH
BURST
EMPH
REC
CONV
REC C
LPF
ACK
SW
REC
APC ID
SI 48
REC
1/N
TEST1
PB
TEST1
VCO
1/8
PB
CAR
CONV
BURST
DEEMPH
CAR
BPF
CROMA
DEEMPH
PB
REC
CK 49
TEST1
D. O.
PULSE 50
ACK BID
DET
CAM REC
PB
REC
VXO
XO
fo
ACK
CONT
ACK
PB C
LPF
BID
FF
PB
CONV
CAR
INV
AUTO
51
C MUTE
PB C
BPF
PI
PS
ACK
SW
I REF
GND
X TAL
IN
59
60
61
62
63
64
C IN
DC FB
58
C OUT
57
BF
VCO
56
FSC
OUT
55
CAM FSC
SHP
54
X TAL
OUT
53
V REG
52
EXT
C IN
SWP
AFC
FL
APC
FL
90°
SHIFT
APC
DET
—2—
CLAMP
TC2
DL OUT1
AGC TC2
DL IN1
COMP
SYNC
DDS/
MASK
WDC
V IN2
AGC TC1
V IN1
Y IN
VCC
SI 48
CS 47
SWP 46
45
CARR CONT 44
DEV CONT 43
SMEAR CONT 42
Y RF IN 41
RF GND 40
39
LIM
LIM
56
55
54
ACK
53
BID
FF
ACK
CONT
CAR
BPF
52
AUTO
fo
ACK BID
DET
1/8
CAR
CONV
51
CAM REC
90°
SHIFT
SWP
CXA1700AR
LPF
HHS
SMEAR. CONT
50
VXO
XO
VCO
1/N
TEST1
TEST2
DEMOD
MOD
DEV. CONT
CAR. CONT
SYNC SEP
49
REC
PB
APC
DET
PB
REC
APC ID
AFC DET
AFC ID
BF
HHK
BUS
DECODER
TEST2
REC
S • REC+PB
AGC DET
Y MUTE
CLAMP
CK
RF/V VCC 38
+
+
DDS
AGC OFF
D. O.
PULSE
INV IN 37
–
+
VD/HD
INSERT
PB
APC
FL
36
CLAMP
INSEL
VIDEO
AGC
AFC
FL
V OUT GND 35
CLAMP
CLAMP
EXT
C IN
Y OUT 34
DC FB
CLAMP TC1 33
I REF
25
GND
26
64
ACK
SW
C MUTE
REC
PB
TEST1
ACK
SW
63
TEST1
CROMA
DEEMPH
REC
CONV
REC C
LPF
ACC
CONT
SWP
SWP
E
CLAMP
HHS CANCEL
HARD
CLIP
TRAP
PB
SHP
THROU
62
SWP
PB C
BPF
BURST
DEEMPH
BURST
EMPH
Y EMPH
Y DE EMPH
ACC
DET
EQ
Sharpness
NOISE CANCELLER
ATT
REC
f sc
REC
17
61
PI
PS
PB
REC
REC
BPF
LIM
+
PB
Yd PB
W • PB
Y CORRE DET
CLAMP 3
18
60
CAR
INV
PB
CONV
PB
REC
CROMA
EMPH
SMEAR COMP
W/D CLIP
PB
+
+ +
19
CLAMP 2
S • REC
+ACK • REC
DOP
+ –
REC • (S+443+EDIT+NO CORR)
CLIP COMP
ACC
AMP
W • PB
ATT
20
DOC TRAP
W • PB
Yd PB
TRAP
PB
PB+REC • CORR
REC
PB
EQ
S • REC
+ACK • REC
+ –
VCA 2
21
59
PB C
LPF
PB
REC
C SEL
NO CORR
HPF
EDIT
+
SYNC
22
58
–
ATT
PB • ACK
PB
+
–
S • REC
W • PB
CLAMP 1
23
57
+
REC
S • REC
+
VCA 1
+ +
24
X TAL
IN
27
V REG
28
X TAL
OUT
29
CAM FSC
SHP
30
FSC
OUT
PB C IN
DL OUT2
BF
VCO
Y RF OUT
ON
CLAMP
TC3
C OUT
—3—
C IN
VIDEO OUT
31
NC
16 AGC TC3
C TRAP
REC C OUT
DEMOD OUT
NC TC IN
EMPH IN
SUB EMPH TC
MAIN EMPH TC
MAIN EMPH OUT
C EMPH CONT
8
7
6
5
4
3
2
1
9 COMP TC
10 DEEMPH IN
11 VG1
12
13 LIM C
14 Y COMB OUT
15 COMB ADJ
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REC L/
JVD
32
CXA1700AQ/AR
Block Diagram and Pin Configuration
(CXA1700AR)
CXA1700AQ/AR
Pin Description
Pin
Symbol
No.
1 C EMPH
CONT
Pin voltage
DC
AC
Control
—
range:
1.8V to 3.8V
Equivalent circuit
Description
Chroma emphasis f0 (center
25µA
1
frequency) adjustment. (Refer
to item 7 on Description of
Operation.)
150
2
MAIN
EMPH
OUT
2.05V (sync
tip level)
150
2
Main emphasis and main deemphasis time constant.
When recording, the
emphasized Y signal prior to
white/dark clipping is output.
1mA
3
MAIN
EMPH
TC
2.05V (when
time constant
connected)
250mVp-p
Output
—
4k
3
100
4
SUB
EMPH
TC
2.05V (when
time constant
connected)
—
Main emphasis and main deemphasis time constant. Apply
an external constant between
this pin and Pin 2, as shown
below.
2
3
HPF time constant that forms
sub emphasis and sub deemphasis. Add resistance
between this pin and Pin 11.
100
4
11
4
VG1
5
EMPH IN
2.05V (sync
tip level)
100
5
150
500mVp-p
Input
—4—
During recording, Y emphasis
input. During playback, this
signal to the noise canceler is
input. Performs diode
clamping (sync tip clamping),
with the clamp capacitance
attached externally.
CXA1700AQ/AR
Pin
Symbol
No.
6 NCTC IN
Pin voltage
DC
AC
2.05V (when
—
time constant
connected)
Equivalent circuit
6
Description
Connects external time
constant for HPF of noise
canceler. (Refer to item 11 on
Description of Operation.)
150
6
Input
11
VG1
7
DEMOD
OUT
1.6V
140mVp-p
output during
standard
playback
Y signal output that has been
FM demodulated and has
passed though the DEMOD
LPF.
63
7
1mA
8
9
REC C
OUT
COMP TC
2.0V
2.05V (when
time constant
connected)
Lowfrequency
conversion
chroma
signal
300mVp-p
output
200
8
SAT
4k
—
150
9
During recording, a chroma
signal that has been burst
emphasized, chroma
emphasized, and frequency
converted is output. During
ACK, the output DC goes to
0V. During recording, if
TEST1 is High the burst
emphasized signal is output.
Connects external time
constant for HPF of the
white/dark clipping
compensation circuit during
playback.
9
11
VG1
10 DEEMPH
IN
2.05 V
(center DC)
180mVp-p
input during
playback
150
10
5k
2.05V
—5—
Input for de-emphasis circuit
during playback. The signal is
input to the de-emphasis
circuit through the clipping
compensation circuit.
CXA1700AQ/AR
Pin
Symbol
No.
11 VG1
Pin voltage
DC
AC
2.05V
—
Equivalent circuit
Description
Internal reference voltage
source. (Can not be used as
external bias for Pins other
than 4, 6, and 9.)
150
11
2.5k
3k
12 C TRAP
2.05V
Chroma
signal
300mVp-p
output during
playback
270
150
12
300
0.6mA
13 LIM C
2.4V
—
Outputs chroma signal that
has passed through PB C
BPF and chroma feedback
comb filter subtracter
after frequency conversion
during playback.
Connects decoupling
capacitor for limiter of the
playback Y comb block.
150
150
10k
10k
13
14 Y COMB
OUT
1.2V
(sync tip
level)
Y signal
500mVp-p
output
150
14
1.4mA
15 COMB ADJ Control
range: 1.8V
to Vcc
—
150
15
—6—
Outputs Y signal processed by
comb filter. During playback,
the signal is output through
the sharpness circuit. If mode
E is set High, the signal is
output without passing
through the f sc Trap; if mode
SHP THRU is set High, the
signal is output without
passing through the sharp
-ness circuit.
VCA gain adjustment in the
comb filter block. (Refer to
Adjustment Procedure.)
CXA1700AQ/AR
Pin
Symbol
No.
16 AGC TC3
Pin voltage
DC
AC
2.2V to 4.0V
—
Equivalent circuit
Description
Time constant for VCA circuit
in comb filter block. A DC
limiter circuit with an upper
limit of 4.0V and a lower limit
of 2.2V is built in.
150
16
150
17 NC
—
—
Not connected. Normally,
connect to GND.
18 CLAMP
TC3
—
—
Time constant for feedback
clamp circuit in the comb filter
block.
150
18
150
19 DL OUT2
2.1V (center Video
DC)
500mVp-p
input
Inputs CCD DL (delay line)
output signal to the VCA
circuit.
150
19
40k
2.1V
20 CLAMP
TC2
—
—
150
20
150
—7—
Time constant for feedback
clamp circuit in the comb filter
block.
CXA1700AQ/AR
Pin
Symbol
No.
21 DL OUT1
Pin voltage
DC
AC
2.1V (center Video
DC)
500mVp-p
input
Equivalent circuit
Description
Inputs CCD DL (delay line)
output signal to VCA circuit.
150
21
40k
2.1V
22 AGC TC2
2.2V to 4.0V
—
Time constant for VCA circuit
in the comb filter block. A DC
limiter circuit with an upper
limit of 4.0V and a lower limit
of 2.2V is built in.
150
22
150
23 DL IN1
2.2V
Video
500mVp-p
output
Output for inputting a signal to
the CCD DL (delay line).
Normally, Y+C signal is
output.
150
150
23
1mA
24 COMP
SYNC
High : 2.5V,
Low : 0V
output
—
Composite sync signal output.
No output if mode SYNC SEP
OFF is set High.
270
50k
24
5k
2.5V
20k
1H
20k
0
270
25 VCC
VCC=4.75V
—
Main block power supply.
—8—
CXA1700AQ/AR
Pin
Pin voltage
Symbol
No.
DC
AC
26 DDS/MASK 2.0V
—
(when open)
(MASK)
1.5V
(DDS)
2.3 to 3.0V
Equivalent circuit
Description
2.0V
150
1.1V
26
16k
45k
15k
27
WDC
2.6V
(when open)
—
4.1V
30k
150
27
10k
2.05V
28
V IN2
2.05V
(sync tip
level)
Video
500mVp-p
input
270
28
100nA
4µA
MUTE
ON
29
AGC TC1
—
—
100
29
1k
47k
MUTE ON
PB ON
—9—
Input for VOW (character
level) signal, VOB (character
background) timing pulse of
DDS (date display system)
and masking timing pulse.
MASK : VTH = 1.1V
DDS :
VTH = 2.0V
By varying the input DC for
DDS over a range of 2.3V to
3.0V, the character level can
be changed.
(Refer to item 4 on Description
of Operation.)
Determines the white/dark
clipping levels. When open,
the standard white clipping
level is 235%, and the dark
clipping level is 95%.
(Mode DC1, 2 = Low, High)
(Refer to item 5 on Description
of Operation.)
Video signal input. Performs
diode clamping, with the
clamp capacitance externally
connected. If the mode MUTE
is set High, the charge of the
clamp capacitance is
discharged.
Time constant for the video
AGC circuit in the I/O block.
During mute and playback, the
charge of the external
capacitance is discharged.
CXA1700AQ/AR
Pin
Symbol
No.
30 V IN1
Pin voltage
DC
AC
2.05V
Video
(sync tip
500mVp-p
level)
input
Equivalent circuit
Description
270
30
100nA
4µA
MUTE
ON
31 REC L/JVD 1.9V
(Typical value
during REC
LEVEL
adjustment)
32 Y IN
1.6V
(sync tip
level)
—
Level adjustment during
recording. The adjustment
range is 1.3V to 2.6V. During
playback, serves as input for
JOG (variable speed
playback) VD pulse and HD
pulse.
VTH = 2.7V
(Refer to item 3 on Description
of Operation.)
Video signal input for video
out circuit. Performs diode
clamping, with the clamp
capacitance externally
connected.
31
150
Video
500mVp-p
input
Video signal input. Performs
diode clamping, with the
clamp capacitance externally
connected. If the mode MUTE
is set High, the charge of the
clamp capacitance is
discharged.
270
32
100nA
33 CLAMP TC1
—
—
Time constant for feedback
clamp circuit in I/O block.
100
33
100
34 Y OUT
1.8V
(sync tip
level)
Video
500mVp-p
output
I/O block signal output.
2.05V
150
3.4k
3k
34
27k
—10—
CXA1700AQ/AR
Pin
Symbol
No.
35 VOUT GND 0V
Pin voltage
DC
AC
—
Equivalent circuit
Description
GND for the video out circuit.
38
36 VIDEO
OUT
1.6V
(sync tip
level)
Video
2.0Vp-p
output
37 INV IN
1.5V
Video
1.0Vp-p
input
38 RF/V VCC
VCC=4.75V
Video out 75Ω driver output.
100
37
36
—
Inverted input for V sag
compensation for the video
out 75Ω driver.
Video out circuit and RF
system block power supply.
35
39 Y RF OUT
2.1V
Y FM output
63
63
39
500mVp-p
40 RF GND
41 Y RF IN
0V
2.5mA
—
—
During recording, FMmodulated Y signal output.
If mode TEST2 is set High
during recording, the Y signal
after white/dark clipping is
output.
RF block GND.
YFM
200mVp-p
input
150 10p
During playback, inputs Y-RF
signal to FM modulation
circuit.
41
45k
42 SMEAR
CONT
Control
range:
1.8V to Vcc
—
150
42
—11—
During recording, adjustment
for high Luminance Smear
Compensation.
CXA1700AQ/AR
Pin
Pin voltage
Symbol
No.
DC
AC
43 DEV CONT Control
—
range:
1.8V to Vcc
Equivalent circuit
Description
During recording, adjustment
for deviation of Y-FM
modulation.
150
43
44 CARR
CONT
Control
range:
1.8V to Vcc
—
During recording, adjustment
for carrier of Y-FM modulation.
150
44
45 PB C IN
3.1V
(during
playback)
(PB Y RF)
+
(PB C RF
100mVp-p)
input
150
45
50k
3.1V
46 SWP
—
—
46
150
47 CS
48 SI
High : Vcc,
Low : 0V
input
—
150
47
49 CK
48
49
—12—
2.05V
During playback, chroma RF
signal input.
PB C LPF is built in, so that a
signal with the AFM and ATF
components (Y RF + C RF)
eliminated can be input.
RF SWP (switching pulse) and
HCHG (head change) pulse
input. Half H shift, HHS
cancel, ACC channel hold,
and PI/PS switching operate
at VTH = 0.7V. Yd playback
during playback operates at
VTH = 2.05V (same as when
mode Yd is High).
Input to BUS DECODER. CS
is used as chip select, and
data is latched at rising edge.
CK is the clock input. Use a
clock frequency fck of less
than 1.3MHz. SI is used as a
serial data input.
CXA1700AQ/AR
Pin
Pin voltage
Symbol
No.
DC
AC
50 D.O.PULSE High : 3.1V,
—
Low : 0V
input
Equivalent circuit
150
50
2.05V
100k
51 APC FL
2.25V (typ.)
during lock
—
Description
Drop out pulse input.
VTH = 2.05V
If the drop out pulse is input,
the signal prior to 1H is output
for the Y system and the APC
and ACC system errors are
held for the C system.
Connects an APC external
filter.
200
51
during
playback
52 AFC FL
2.25V (typ.)
during lock
—
Connects an AFC external
filter.
200
52
200
53 EXT C IN
2.6V
(Chroma
signal
314mVp-p
input
During recording, the chroma
signal is input. When the
typical level is 75% color bar
input, the input signal is
314mVp-p.
150
53
50k
2.6V
54 DCFB
2.25V (typ.)
during lock
—
200
200
54
200
—13—
Connects a DC feedback
external filter for a nonadjustment VCO.
CXA1700AQ/AR
Pin
Symbol
No.
55 I REF
Pin voltage
DC
AC
1.8V (when
—
resistance
connected)
Equivalent circuit
Description
External reference current
source. Connect external
resistance of 18kΩ to GND.
Be careful concerning
interference pin.
20k
55
56 GND
0V
57 XTAL IN
2.0V
—
260mVp-p
(NTSC)
during
playback
Main block GND.
270
57
270
during
playback 2V
58 VREG
4.1V
Crystal oscillation reference
input. Be careful concerning
interference pin and the
floating capacitance.
4k
2V
—
4.1V regulator output.
58
59 XTAL OUT
3.1V
340mVp-p
(NTSC)
during
playback
Crystal oscillation reference
output. Connects the crystal
between this pin and Pin 57.
310
15k
100
59
540µA
60 CAM FSC
SHP
Sharpness
control range:
1.8V to VCC
—
60k
200
60
9p
—14—
Subcarrier input during
camera recording.
200mVp-p(min). Sharpness
control during playback.
CXA1700AQ/AR
Pin
Symbol
No.
61 FSC OUT
Pin voltage
DC
AC
2.2V
NTSC
600mVp-p
PAL
450mVp-p
Equivalent circuit
Description
Subcarrier output. This
subcarrier is used for the CCD
delay line clock frequency.
200
61
0.5mA
62 BF VCO
63 C OUT
64 C IN
During BF
output
550mVp-p
during VCO
output
High : 1.8V,
Low : 0V
Low during
BF interval
2.0V
Chroma
signal
314mVp-p
output
(during
recording)
2.05V
Chroma
signal
314mVp-p
input
46k
200
9p
62
54k
SAT
100
200
63
2k
64
28k
2.05V
—15—
Burst flag and VCO OUT
output for testing. When using
this pin, connect 3.3kΩ
resistance to GND. Serves as
VCO output when mode
TEST2 is High.
During recording, outputs
chroma signal after Y/C
separation or for chroma
signal input from Pin 53.
During playback, the playback
chroma signal is output.
During ACK, the output DC
becomes 0V.
Inputs chroma signal to Y/C
MIX circuit in the I/O block.
During component signal
recording or playback, this
signal is Y/C mixed and is
then output from V OUT.
Measurement item
Symbol
Signal
—16—
Internal reference
voltage source 1
(VCC–)
Internal reference
voltage source 1
(VCC+)
Internal reference
voltage source 2
7
13
12
11
—
VG1
f
g
VAGCH
VAGCP
SYNC AGC
input High level
PEAK AGC
e
VAGCL
—
—
VREG+
IREF
—
—
VREG–
VREG
SYNC AGC
input Low level
<Y recording>
10 Reference current
source
9
8
Internal reference voltage
source 1
6
Video AGC
—
—
—
—
—
—
—
—
—
—
—
—
SG30
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Voltage
Control DC
Voltage
Frequency source
—
Amplitude
Input conditions
D
E
F
—
—
—
SW30
—
—
—
—
B
A
A
A
A
A
C
—
—
A
Mode
conditions
—
SW
set to
ON
P34
P55
P11
P58
P58
P58
I1
I1
I1
I1
I1
Measurement
point
Measures the output amplitude level
Measures the output SYNC level
IREF=(voltage at Pin 55 /18k
Voltage at Pin 11
VREG+=VREG2–VREG
VCC=5.25V, voltage at Pin 58 :VREG2
VREG–=VREG1–VREG
VCC=4.5V, voltage at Pin 58 :VREG1
VCC=4.75V, voltage at Pin 58 :VREG
Measurement method
94
1.95
–12
3.90
68
35
20
55
63
Min.
550
mV
mV
143
µA
V
mV
mV
V
mA
mA
mA
mA
mA
Unit
mV
106
2.21
+12
4.36
120
70
40
100
113
Max.
143
100
2.08
+1
–1
4.13
94
53
30
78
88
Typ.
Ratings
VCC = 4.75V, Ta = 25°C, see Electrical Characteristics Test Circuit and BUS DECODER Mode Condition Table.
∗ Start measurements after adjustments in accordance with the Precautions Concerning Measurements.
Signal
source
(
<Current consumption, reference bias source>
—
1 Composite signal input
IREC1 —
Current consumption
during recording
—
2 Separate signal input
IREC2 —
Current consumption
during recording
—
—
IPS1
3 Composite signal input
Current consumption in
power saving mode
—
IPS2
—
4 Separate signal input
Current consumption in
power saving mode
—
IPB
—
5 Current consumption
during playback
No.
Electrical Characteristics
)
CXA1700AQ/AR
GYC1
300kHz gain for
3.58MHz gain
fsc TRAP
TRAP on
300kHz gain for
TRAP off
25
24
23
–10dB
(50mVp-p)
–20dB
2MHz
10kHz/
—
—
3.58MHz
300kHz
2MHz
10kHz/
(354mVp-p) 500kHz
–3dB
(158mVp-p)
FE14
a SG5-2
b SG5-1 500mVp-p
647mVp-p
–20dB
FE13
FE12
FE11
357mVp-p
b SG5-1 500mVp-p
c
/5MHz
SG30 Sine wave 300kHz
357mVp-p
—
—
—
—
—
—
—
—
—
—
Voltage
Control DC
Voltage
Frequency source
SG30 Sine wave 300kHz
Amplitude
Input conditions
2MHz
–10dB
2MHz
–3dB
500kHz
–3dB
KD.C
21 Dark clip amount
22
KW.C
20 White clip amount
KH.C
GYC3
GYC2
FIO2
For video AGC on
d
d
FIO1
For video AGC off
19 Hard clip amount
18
17
16
15
14
Signal
Symbol
Measurement item
I/O frequency
Y COMB OUT frequency
No.
characteristics
characteristics
Pre-emphasis standard
—17—
frequency characteristics
Signal
source
SW5-3
SW5-1
SW5-1
SW5-1
SW30
SW30
SW
set to
ON
H
H
H
C
G
B
A
Mode
conditions
P39
P39
P39
P14
P34
Measurement
point
X
Measures level ratio of
each output frequency
component.
(These emphasis
characteristics include white/
dark clipping.)
Z
Y
V (10kHz)
V (2MHz)
V (10kHz)
V (500kHz)
= Z ×100
X
KD.C
= Y ×100
X
KW.C
Level ratio of this signal output with
500mVp-p input and with
647mVp-p input
Level ratio between 300kHz sine wave and
3.58MHz sine wave (Refer to output
waveform measurement Nos. 14 and 15.)
I/O gain of 300kHz sine wave
(Refer to output waveform measurement
Nos. 14 and 15.)
–1.5
Level ratio between 300kHz sine wave and
5MHz sine wave
19.5
15.0
11.8
10.7
–1.5
Min.
Measurement method
95
235
115
–23
–0.6
–0.3
0
0
Typ.
Ratings
25.5
19.0
15.8
11.7
–14
1.5
1.5
Max.
dB
dB
dB
dB
%
%
%
dB
dB
dB
dB
dB
Unit
CXA1700AQ/AR
DMOD
Secondary distortion
—18—
<Y playback>
40
39
38
—
300kHz
—
—
—
—
SW4
SW3-1
J2
J1
A
FSHP1
FSHP2
MAX
FSHP0
a
VDEHHS —
SG3
2.15MHz
175mVp-p 300kHz/
1.8V
4.75V
V60
—
V60
—
SW4
SW3-1
ON/OFF
SW46-1
F
K
F
J4
—
30mVp-p
SW5-2
J3
—
SG3
VG1+0.5V
VG1+0.25V
VG1
A
A
K3
a
—
Mode
conditions
K2
K1
K0
MIN
EDIT
37 HHS canceler
36
35
34
33 PB Y comb filter ATT level
LMODL
V5-1
4.75V
—
V43
maximum frequency (L)
ƒDL MAX
1.8V
—
4.75V
1.8V
—
VG1+0.5V
PB sharpness
frequency
characteristics
SW
set to
ON
V5-1 V G1+0.5V SW5-2
V44
V44
—
V43
—
—
V5-1
—
—
—
—
Voltage
Deviation control
ƒDL MIN
ƒCL MAX
Amplitude
Signal
Control DC
Voltage
Frequency source
minimum frequency (L)
Deviation control
maximum frequency (L)
Carrier control
minimum frequency (L)
ƒCL MIN
VMOD
Output level
Carrier control
Symbol
Measurement item
32 Linearity (L)
31
30
29
28
27
26
No.
FM modulator
Input conditions
Signal
source
P14
P23
P14
P39
P39
Measurement
point
Measures the level ratio of P14 (Pin
14 Y COMB OUT) output between
300kHz input and 2.15MHz input.
V (2.15MHz)
V (300kHz)
DC level difference at P23 (Pin 23 DL
IN1) when SW46-1 is turned on and off
Measures the I/O gain under all mode
conditions.
Makes initial setting of V44, applies
test 9 measurement VG1. VG1+0.25V
and VG1+0.5V to V5-1 and then
calculates the following equation using
the output frequency.
ƒ(VG1+0.5V)–ƒ(VG1+0.25V)
ƒ(VG1+0.25V)–ƒ(VG1)
Makes initial setting of V44, applies
test 9 measurement VG1+0.5V to V5-1
and then measures the output
frequency.
Ratio to secondary higher harmonic
components with 4.2M output V
(8.4MHz)/V (4.2MHz)
Measures the
output
frequency
Signal level with
4.2MHz output
Measurement method
dB
–15
–18
–21
7
–10
–1.0
1.6
dB
dB
dB
mV
dB
dB
–3.3
–32
dB
–1.8
–6.3
—
MHz
MHz
MHz
MHz
dB
mVp-p
Unit
–4.8
1.1
5.4
4.2
560
Max.
–9.3
1.0
5.9
5.0
5.2
3
–34
500
Typ.
Ratings
–7.8
0.9
5.4
4.2
440
Min.
CXA1700AQ/AR
—19—
53
52
51
50
49
48
47
46
45
44
43
42
41
No.
Noise canceler frequency characteristics
–3dB
–3dB
10kHz/
LDEMOD2
CLDEMOD
Linearity (E)
Carrier leak
GTRAP
GDEMOD2
Gain (E)
a
LDEMOD1
Linearity (L)
FNC5
FNC4
FNC3
FNC2
GDEMOD1 a
1MHz
–30dB
1MHz
–30dB
1MHz
–30dB
1MHz
–30dB
1MHz
FNC12
4.2M
10MHz
7MHz
4MHz
7MHz
5MHz
3.58MHz
SG19 300mVp-p 300kHz/
SG41 200mVp-p
(15.8mVp-p)
—
—
V (300kHz)
between 300kHz input and 3.58MHz input
Level ratio of P23 (pin 23 DL IN1)
input
Ratio of 4.2M component of output to
SW50
P23
P17
V (10M)–V (7M)
frequency
V (7M)–V (4M)
10–4
V (10M)–V (4M)
V (5M)–V (3M)
V (7M)–V (5M)
7-3
V (7M)–V (3M)
each input
DEMOD OUT) for
at P7 (Pin 7
with the output DC
equations at right
Calculates the
V (3.58MHz)
T
F
M
F
SW22
SW20
SW19
SW41
L5
L4
L3
V (10kHz)
output frequency component.
Measures the level ratio of each
SW33
P7
P34
SW24-1
L2
L1
–30dB
SW5-3
SW5-1
Measurement method
(50mVp-p)
—
—
Measurement
point
–30dB
—
—
Mode
conditions
1MHz
3MHz
(354mVp-p) 1MHz
Voltage
SW
set to
ON
V (1MHz)
a SG5-2
Amplitude
Control DC
Voltage
Frequency source
SW6
FNC11
FNC10
Signal
Input conditions
–20dB
–20dB
1MHz
Symbol
Gain (L)
NC5
NC4
NC3
NC2
NC1
Measurement item
DOC Trap
FM demodulation
Signal
source
0.9
50
0.9
90
Min.
–28
–40
1.02
65
0.96
115
–4.6
–2.5
–5.0
–6.7
–6.3
–2.9
0
Typ.
Ratings
–14
1.1
80
1.1
140
Max.
dB
dB
—
MHz
mV
—
MHz
mV
dB
dB
dB
dB
dB
dB
dB
Unit
CXA1700AQ/AR
Demodulation LPF frequency characteristics
68
67
66
65
64
63
62
61
60
DDS
characteristic
7.8MHz frequency
characteristic
4.0MHz frequency
300kHz gain
characteristic
6.12MHz frequency
VCS-H
High
DCS
GBUFF
FBUFF
Delay
Amplifier gain
5MHz frequency
characteristic
WCS
Pulse width
level
Low
VCS-L
∆JOGVD
JOG VD
level
∆VVOW
∆VVOB
VOW
VOB
FLPF23
FLPF22
GLPF21
FLPF13
FLPF12
2.5MHz frequency
characteristic
GLPF11
Symbol
300kHz gain
Measurement item
<Y recording/playback>
59
58
57
56
55
54
No.
Standard mode
Hi-8 mode
(Date display system)
Composite sync pulse
—20—
Video buffer
Signal
Refer to Detailed Explanation (1).
d
h
Refer to Detailed Explanation (2).
—
—
SW30
SW26
357mVp-p
/5MHz
300kHz
SG32 Sine wave 300kHz
SG30
—
—
SW32
SW30
SW31
—
—
SG31
—
—
SW41
SW30
—
—
—
SW
set to
ON
SG30
SG30
SG26
7.8MHz
4.0MHz
300kHz
6.12MHz
2.5MHz
—
Voltage
Control DC
Voltage
Frequency source
SG41 200mVp-p 300kHz
Amplitude
Input conditions
Signal
source
A
B
B
M
F
Mode
conditions
P36
P34
P24
P24
P34
P7
Measurement
point
VCS-L VCS-H
5MHz sine wave overlapping the Y signal.
Measures level ratio for a 300kHz sine wave and
overlapping the Y signal.
Measures the I/O gain for a 300kHz sine wave
P34 ( 34 YOUT)
DCS
W CS
GND
Measures the DC
level difference with
the sync tip level.
the pedestal level.
level difference with
Measures the DC
Refer to Detailed
Explanation of
Measurement Method
(1) for compensation
values GC1 and GC2.
The amplitude
frequency indicated for
the input conditions is
the value of SG54 in
SG41.
P24 ( 24 COMP SYNC)
Method (2).
Measurement
Explanation of
Refer to Detailed
V (300kHz)
V (7.8MHz)
V (300kHz)
V (4.0MHz)
(compensation item GC2)
(300kHz I/O gain) –
V (300kHz)
V (6.12MHz)
V (300kHz)
V (2.5MHz)
(compensation item GC1)
(300kHz I/O gain) –
Calculates the
equations at left using
the output level of P7
(Pin 7 DEMOD OUT)
for each input
frequency.
Measurement method
5.5
0.1
2.3
–15
–10
–0.5
–1.5
–1.5
–1.5
Min.
0
6.0
6.5
dB
dB
µsec
0.35
V
V
mV
µsec
0.7
0.2
2.7
35
mV
mV
dB
–10
40
dB
2.0
dB
4.5
0.03
2.5
10
340
15
–16
1.0
1.5
dB
–32
–38
0
dB
dB
Unit
1.5
1.5
Max.
0
0
Typ.
Ratings
CXA1700AQ/AR
—21—
Measurement item
gain
Minimum
gain
Maximum
Gain
82
81
80
79
78
77
76
75
SG53
VC=
—
—
—
—
—
—
Q
P
P
P
O
P63
P8
P8
P8
P63
V OC
V OB
Measures the ratio between VCE1 and the
frequency of the chroma interval. VCE1
Measures the output level for the input
VOC
VOB
burst interval and the chroma interval.
Measures the level ratio between the output
I from SG24.
Until measurement No. 126, input signal
Measures the I/O level ratio.
sine wave.
Measures the I/O level ratio for 3.58MHz
Measurement method
VACK OFF a
VACK ON
ACK OFF
ACK ON
–10dB
2mVp-p
20mVp-p 3.58MHz
3.08MHz
frequency of the chroma interval. VCE2
Measures the ratio between VCE2 and the
SW53
SW24-2
level.
chroma interval. Measures the output DC
FCE22
4.08MHz
Measures the output level for the input
output level for the input frequency of the
99.3mVp-p
3.58MHz
+500kHz
FCE21
VCE2
–10dB
ƒsc
–10dB
+500kHz
0dB
SW24-1
SW53
SW24-2
SW24-1
SW53
SW24-2
SW24-1
SW53
SW24-2
SW24-1
SW53
N
Measurement
point
chroma interval.
3.08MHz
4.08MHz
3.58MHz
—
—
—
SW30
Mode
conditions
output level for the input frequency of the
FCE12
314mVp-p
SG53 VC=
SG53 143mVp-p 3.58MHz
363mVp-p
10mVp-p
SG53 143mVp-p 3.58MHz
—
—
SW
set to
ON
+500kHz
FCE11
ƒsc
i
a
314mVp-p
SG53 314mVp-p 3.58MHz
—
Voltage
Control DC
Voltage
Frequency source
SG30 Sine wave 3.58MHz
Amplitude
Input conditions
0dB
VCE1
BE
GMINACC
GMAXACC
GCENACC a
a
d
GCOUT1
GCOUT2
Signal
Symbol
0dB
level
74 Burst emphasis
73
72
71
(S•REC)
70 C OUT LEVEL 2
(REC)
69 C OUT LEVEL 1
<C recording>
No.
ACC AMP
Chroma emphasis characteristics
C OUT DC
Signal
source
1.7
1.4
1.4
60
–1.4
–1.4
200
5.0
14
–3.3
–1.5
–1.5
Min.
80
2.0
3.0
3.0
85
1.0
1.0
270
6.0
–9.5
18
–1.3
–0.3
0
Typ.
Ratings
200
2.3
5.4
5.4
120
2.6
2.6
360
7.0
–7
0.7
1.5
1.5
Max.
mV
V
dB
dB
mVp-p
dB
dB
mVp-p
dB
dB
dB
dB
dB
dB
Unit
CXA1700AQ/AR
95
94
93
92
91
90
89
88
87
86
85
84
83
Rec C RF Level
Rec APC Pull-in
i
VRECC
—
—
SW24-1
Q
P61
Measures the ratio between VRECC
Measures the output level of the
SW53
P8
Measurement method
chroma interval. VRECC
Q
Measurement
point
SW24-2
SW24-1
Mode
conditions
The output frequencies of 3.58MHz +
∆ƒkHz are converted to
REC Chroma band3 FRECC3
pull-in range
Lower
pull-in range
Upper
pull-in range
Lower
pull-in range
Upper
pull-in range
ƒAFCP–
ƒAFCP+
ƒAFCN–
ƒAFCN+
I
SG24
—
(–3%)
15.156kHz
(+3%)
16.094kHz
(–3%)
15.262kHz
(+3%)
16.206kHz
–∆ƒHz
4.43MHz
ƒAPCRP–
4.43MHz
Lower
j
–∆ƒHz
3.58MHz
+DƒHz
ƒAPCRP+
ƒAPCRN–
+∆ƒHz
SG53 143mVp-p 3.58MHz
pull-in range
Upper
pull-in range
Lower
pull-in range
Upper
ƒAPCRN+
—
—
second later after switching the mode
conditions.
SW62
S3→S4
Measures the output frequency one
frequency (4.43MHz–3kHz).
SW59
SW24-2
2 seconds by the SG53 input
SW57
SW24-1 S1→S2 P62
Lower input frequency pulled in within
frequency (4.43MHz + 1kHz).
SW53
SW51
Upper input frequency pulled in within
2 seconds by the SG53 input
R
frequency (3.58MHz–3kHz).
2 seconds by the SG53 input
SW24-2
SW24-1
frequency (3.58MHz+1kHz).
SW53
Lower input frequency pulled in within
2 seconds by the SG53 input
SW24-2
Upper input frequency pulled in within
conversion.
(+650kHz)
743kHz–∆ƒkHz for frequency
REC Chroma band4 FRECC4
4.23MHz
(+300kHz)
3.88MHz
(–300kHz)
interval.
—
—
SW
set to
ON
and the output level for the chroma
3.28MHz
2.83MHz
3.58MHz
Voltage
Control DC
Voltage
Frequency source
REC Chroma band2 FRECC2
314mVp-p
SG53 VC=
Amplitude
Input conditions
(–750kHz)
a
Signal
Symbol
REC Chroma band1 FRECC1
LEVEL
REC C RF
Measurement item
Rec AFC Pull-in
REC AFC Pull-in
No.
Range (NTSC)
Range (PAL)
Range (NTSC)
—22—
Range (PAL)
Rec APC Pull-in
Signal
source
200
230
210
Min.
5683594
6035156
5769126
6125979
–1.0
2.5
–2.0
–40
300
Typ.
Ratings
–200
–230
420
Max.
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
dB
dB
dB
dB
mVp-p
Unit
CXA1700AQ/AR
—23—
Measurement item
108
107
SW24-1
SW18
SW16
T
T
P63
P63
Measures the ratio between VPBCO
chroma interval. VPBCO.
Measures the output level of the
between channels 1-4
Gain difference
between channels 1-3
Gain difference
between channels 1-2
Gain difference
compression ratio
—
∆ƒXON
VXON
Frequency deviation
Output level
HD2XON
a
Secondary distortion
SG46
—
1.4Vo-p
—
50Hz
—
—
—
SG45 200mVp-p 743kHz
m SG53
o
BDE
FACC
∆GCH14
∆GCH13
∆GCH12 a/k SG45 200mVp-p 743kHz
1.9MHz
SW16
—
—
—
—
—
—
P61
VOC
F
SW45
Ratio with secondary higher harmonic
component.
V (7.16MHz)/V (3.58MHz)
Measures the output level.
∆ƒXON = ƒXON–ƒSCN
and ƒSCN=3579545Hz.
Difference between output frequency
V OB
VOB
SW24-2
V OC
of output.
Measures the level ratio between the
Measurement Method (4).
Refer to Detailed Explanation of
burst interval and the chroma interval
P63
P8
SW24-1
T
U
the gain difference between channels.
Measurement Method (3). Measures
Refer to Detailed Explanation of
SW18
SW16
SW53
SW24-2
SW24-1
SW46-2
SW46-1
SW45
SW24-2
SW24-1
SW18
conversion.
FPBC4
PB chroma band 4
(+1.2MHz)
3.58MHz–∆ƒkHz for frequency
1043kHz
+ ∆ƒkHz are converted to
FPBC3
PB chroma band 3
(+300kHz)
The output frequencies of 743kHz
(–300kHz)
105 Burst de-emphasis level
106
—
—
Measurement method
interval.
—
—
Measurement
point
SW45
443kHz
100kHz
743kHz
Mode
conditions
PB chroma band 2
200mVp-p
SG45 VC=
Voltage
SW
set to
ON
and the output level of the chroma
n
Amplitude
Control DC
Voltage
Frequency source
SW24-2
FPBC2
FPBC1
VPBCO
Symbol
Input conditions
(–650kHz)
PB chroma band 1
level
PB C OUT
104 High-speed ACC
103
102
101
100
99
98
97
96
<C playback>
No.
PB C OUT Level
PB ACC gain difference between channels
XO characteristics (NTSC)
Signal
Signal
source
450
–50
–5.5
–0.5
–0.5
–0.5
130
Min.
–45
600
–4.5
0.6
0
0
0
–40
–2.3
–0.5
–2.4
200
Typ.
Ratings
–25
750
50
–3.5
3.0
0.5
0.5
0.5
300
Max.
dB
mVp-p
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
mVp-p
Unit
CXA1700AQ/AR
—24—
117
116
115
114
113
112
111
110
109
No.
Pulse width
Delay
pull-in range
Lower
pull-in range
Upper
pull-in range
Lower
pull-in range
Upper
WdBF
TdBF
ƒAPCP–
ƒAPCP+
ƒAPCN–
ƒAPCN+
—
—
—
(+3%)
(+3%)
16.206kHz
—
(–3%)
(–3%)
15.262kHz
—
SG24
—
—
SW18
—
—
SW62
SW24-2
SW24-1
SW5-1
SW62
SW59
(–3%)
—
SW57
15.156kHz
SW51
SW45
F
SW16 V3→V4
SW62
SW45
SW24-2
SW24-2
(–3%)
P62
TdBF
W dBF
P62 ( 62 BFOUT)
P24 ( 24 COMPSYNC)
conditions.
SW24-1
second later after switching the mode
Measures the output frequency one
V (8.86MHz)/V (4.43MHz)
Ratio with secondary higher harmonic component.
Measures the output level.
∆fXOP = ƒXOP–ƒSCP
and ƒSCP = 4433619Hz.
Difference between output frequency
Measurement method
SW18
SW24-1
—
—
—
P61
Measurement
point
V1→V2 P62
F
Mode
conditions
SW16
SW59
SW57
(+3%)
—
—
—
—
—
SW
set to
ON
16.094kHz
SG45 200mVp-p 710.449kHz
SG24
(+3%)
SG45 200mVp-p 754.395kHz
SG24
SG45 200mVp-p 721.141kHz
SG24
—
—
Voltage
Control DC
Voltage
Frequency source
SG45 200mVp-p 765.747kHz
b SG5-1
l
a
l
a
l
a
l
a
V XOP
Secondary distortion
HD2XOP
Output level
—
—
∆ƒXOP
Frequency deviation
Amplitude
Input conditions
Symbol
Measurement item
Pull-in Range (NTSC)
Pull-in Range (PAL)
XO characteristics (PAL)
PB APC
PB APC
Burst Flag
Signal
Signal
source
3.3
3.5
320
–50
Min.
4.3
4.1
5683594
6035156
5769126
6125979
–40
460
Typ.
Ratings
5.3
4.7
–25
650
50
Max
µsec
µsec
Hz
Hz
Hz
Hz
dB
mVp-p
Hz
Unit
CXA1700AQ/AR
µ-COM
P39
P36
P34
SG46
C33
1µ
V50
3v
SW
51
R16
3900
C38
0.68µ
R17
5600
SG
53
SW
53
R18
18k
C40
1µ
60 61 62 63 64
P55
L1
22µH
C42
0.01µ
C41
82p
(PAL)
57 58 59
(NTSC)
49 50 51 52 53 54 55 56
C34 C35 C36
330p 6800p 1 µ
R15
6800
48
47
46
45
44
41
40
39
38
37
36
V44
SW
50
CXA1700AR
C15
10µ
21 20 19 18 17
C17
10µ
C16
3.3µ
16
C14
3.3 µ
P63
R19
3.3k
P61 P62
V60
3v
P58
C43
1000p
C44
0.01µ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
43
SW46-1
C19
100µ
V18
2.7v
35
V43 3v
SW45
C20
10µ
C21
0.01µ
V20
2.7v SG19
15
42
C32
100p
SW41
C29 2.2 µ
R11
1k
C28 220
SW26
SG26
SG24
32 31 30 29 28 27 26 25 24 23 22
SW30
C23
10µ
C22
0.47µ
V22 C18
2.8v 10µ
SW18
34
33
C24
0.47µ
R10
47k
SG30
V42 3v
R12
75
SW46-2
V46 1.4v
SG45
SG41
C31 0.01µ
C30 10µ
R14
1k
R13
75
V33 1v
SW33
C25
10µ
C26
0.47µ
C27
1µ
SW31
V31
SW32
SG31
C37
SG32
0.022µ
C39
1000p
VCC
SW24-2
I1
SW24-1
SW57
A
SW19
P23
SW20
P24
SW22
SW59
—25—
SW62
Electrical Characteristics Test Circuit
R5
1k
C45
10µ
SW2
V
SW3-2
R3
1200 (1%)
1
3300
SW3-1 (1% )
SW4
SW5-1
C7
220p
SW6
R6
1k
R7
1k
R8
SW16
V5-1
R1
470
(1%)
R2
390 (1%)
C5
0.47µ
R4
SG3
1200
SW5-2
C6
0.47µ
SW5-3
SG5-2
C8 470p
C9 47µ
C10 10µ
C11 0.01µ
C12 10µ
V15 3v
C13 10µ
V16 2.8v
C1 390p
C2 330p
C3 150p
C4 150p
SG5-1
V5-2
2.37v
P2
P7
P8
P11
P14
CXA1700AQ/AR
CXA1700AQ/AR
Input signal
Signal
Signal
source
Input signal waveform
a
Amplitude
V (mVp-p)
Frequency f (Hz)
b
Signal
SG3
SG5-2
SG19
SG41
SG45
SG53
SG5-1
Signal
source
Input signal waveform
i
SG53
Chroma signal VC(fHz/VmVp-p)
Burst signal VB (3.58MHz/143mVp-p)
j
100% white
SYNC 0dB
SG53
0°
90°
90°
357mV
c
1H
4.5µsec
63.5µsec
=
4.6µsec
143mV
1.5µsec
f(Hz)/V(mVp-p)
90° phase shift
SG5-1
141% white
SYNC 0dB
k
180°
0°
180°
SG45
504mV
143mV
d
50% white
Overlapping sine Frequency f (Hz)
wave
SYNC 0dB
178.5mV
180° phase inversion
SG30
SG32
f(Hz)/V(mVp-p)
l
2.5V
Sine wave
amplitude
357mVp-p
0V
143mV
e
SG24
4.7µsec
SG30
m
1H(NTSC)63.56µsec: 15.734kHz
SG53
V in MAX
SYNC –6dB
V in MIN
71.5mV
f
SG30
SYNC +6dB
fsc/143mVp-p: 60Hz, 35% AM modulated
286mV
V in MAX –V in MIN
V in MAX +V in MIN ×100 = 35%
g
SG30
100% white
SYNC –6dB
n
PBC RF signal
SG45
357mV
Burst signal VB
(743kHz/200mVp-p)
71.5mV
h
SYNC 0dB
0.4µsec
SG30
With color burst
2.2µsec
210mVp-p
o
1.4V
0V
143mV
4.6µsec
Chroma signal
(fHz/200mVp-p)
10m sec
3.58MHz
—26—
10m sec
SG46
CXA1700AQ/AR
Detailed Explanation of Measurement Method
(1) DEMOD LPF frequency characteristics measurement
Using the CXA1207A as a modulator, the configuration for SG41 is shown below.
CXA1700A to be measured
CXA1207A
1µ
YRFOUT
CAR
FM
MOD
54
4700
P7
43
41
SW41
4700
YRFIN
REC MODE
SG54
LIM
DEMOD
LPF
7
DEMOD
OUT
VCAR
(SG41)
First, without inputting SG54, adjust VCAR so that the Y RF OUT (Pin 43) output frequency of the
CXA1207A is 5MHz. Use VCARO for the VCAR voltage. Next, apply VCARO + 500mV, measure the Y RF
OUT (Pin 43) output frequency fo of the CXA1207A, and then calculate the MOD gain using the following
equation.
GMOD =
fo (MHz)–5 (MHz)
500 (mV)
The compensation values are derived from GMOD and from GDEMOD1 and GDEMOD2 of measurement
Nos. 48 and 50.
Standard mode compensation value : GC1 = 20log [GMOD (MHz/mV) x GDEMOD1 (mV/MHz)]
Hi-8 mode compensation value :
GC2 = 20log [GMOD (MHz/mV) x GDEMOD2 (mV/MHz)]
Next, in order to set the SG41 carrier frequency, adjust VCAR so that the Y RF OUT (Pin 43) output of the
CXA1207A in standard mode is 4.8MHz and in Hi-8 mode is 6.7MHz.
In the above state, measure the I/O gain for the SG54 (200mVp-p/300kHz) input and P7 (Pin 7 DEMOD
OUT), with the gain for standard mode being GLPF10 and for Hi-8 mode GLPF20.
Using these measured values and compensation values, the low frequency gain for DEMOD LPF is
determined using the following equations:
Standard mode :
GLPF11 = GLPF10 - GC1 (dB)
Hi-8 mode :
GLPF21 = GLPF20 - GC2 (dB)
—27—
CXA1700AQ/AR
(2) DDS measurement
When a pulse with the following timing is input, the output from P34 (Pin 34 Y OUT) becomes as shown
below; measures each DC differential.
357mV
SG30 (Pin 30 VIN1 input)
100% white
Y signal
143mV
3V
1.5V
SG26 (Pin 26 DDS/MASK input)
0V
5V
SG31 (Pin 31 RECL/JVD input)
0V
∆VVOB
Pedestal level reference
P34 (Pin 34 Y OUT) output
Sync tip level reference
∆VVOW
∆VJOGV
(3) Measurement of gain difference between PB ACC channels
The ACC amplifier in the CXA1700 has a built-in 4-channel time constants, and those time constants can
be switched by SWP (Pin 46) input. In addition, in NTSC playback chroma signal processing, PI return
occurs in the SWP (Pin 46) input for Low interval. In this measurement, the signal k, that is phase-inverted
each 1H, is input to PBC IN (Pin 45) for the Low interval of SWP; the continuous wave of the signal is
input for the High interval of SWP.
In this case, measure each channel level V1, V2, V3,and V4 of output P63 (Pin 63 C OUT) and calculate
the gain difference between channels using the following equations:
∆GCH12 =
V2
V1
∆GCH13 =
V3
V1
∆GCH14 =
V4
V1
—28—
CXA1700AQ/AR
CXA1700 to be measured
PB C IN
ACC
AMP
PB C
LPF
45
63
C OUT
P63
C32
100p
ACC
CH HOLD
SW45
46
ACC
DET
SWP
(SG45)
SIGNAL k
SIGNAL a
V46
SG46
SG 46 (Pin 46 SWP input)
10m Sec
SIGNAL a
10m Sec
SIGNAL k
SIGNAL a
SIGNAL k
SG45 (Pin 45 PB C IN input)
200mVp-p/743kHz
V1
V2
V3
V4
P63 (Pin 63 C OUT output)
(4) High-speed ACC compression ratio measurement
Measure the high-speed ACC compression ratio in JOG mode by inputting a modulation wave as shown
below.
SG53 (Pin 53 EXT CIN input)
VINMIN
VINMAX
FACC =
20log VOMAX/VOMIN
P8 (Pin 8 REC C OUT output)
V0MIN
V0MAX
—29—
A
B
C
D
E
F
G
H
J1
J2
J3
J4
K
L1
L2
L3
L4
L5
M
N
O
P
Q
R
S1
S2
S3
S4
T
U
V1
V2
V3
V4
Mode
condition
TEST2
—30—
TEST1
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
SYNC OFF
H
H
SHP THROU
H
H
ACK OFF
H
H
C SEL
H
H
DC2
H
PAL
H
H
H
PS
H
H
Yd
H
NCLP2
H
NCLP1
H
H
H
H
NCL2
H
H
H
H
NCL1
H
H
H
H
H
H
CFL2
CAMREC
C MUTE OFF
DC1
FBC L2
CORRE H
BUS DECODER Condition Table for Measuring Electrical Characteristics
CFL1
H
H
E
H
JOG
H
EDIT
CCIR
WCCD
H
H
H
H
H
H
H
H
H
H
H
H
MUTE
H
INSEL
H
H
H
S
H
PB
H
H
H
H
Video AGC
H
Hi-8 demodulation characteristics
C OUT level (REC)
C OUT level (S/REC)
ACC, BE, CE characteristics
REC C measurement 9NTSC)
REC C measurement (PAL)
REC AFC pull-in range
(NTSC)
REC AFC pull-in range
(PAL)
PB C measurement
High-speed ACC compression ratio
PB APC pull-in range
(NTSC)
PB APC pull-in range
(PAL)
PB sharpness characteristics
Noise canceler frequency
characteristics
Composite REC 9Video AGC OFF)
Composite REC (Video AGC ON)
Separate REC
Composite REC power save
Separate REC power save
Normal PB
Y comb OUT f characteristics
Y pre-emphasis characteristics
PB Y comb filter ATT level
Description
(Blanks indicate Low)
CXA1700AQ/AR
FBC L1
CXA1700AQ/AR
Precautions Concerning Measurements (Refer to Electrical Characteristics Test Circuit).
1. Start measurements after making the following adjustments.
1) Recording level (video AGC) adjustment
With the SW conditions (SW30: on) and the mode conditions: B the same as for measurement Nos.
11 to 13, adjust V31 so that the P34 (Pin 34 Y OUT) output is 500mVp-p when signal b (100% white,
500mVp-p Y signal) is input from SG30.
2) CAR adjustment (normal)
With the SW conditions at the initial settings and the mode conditions: A, adjust V44 so that the
frequency of the P39 (Pin 39 Y RF OUT) output is 4.2MHz.
3) Chroma emphasis adjustment
With the SW conditions (SW24-1, SW24-2, SW53: on), and the mode conditions: P the same as for
measurement Nos. 75 to 80, adjust V1 so that the signal level for the chroma interval of the P8 (Pin 8
REC C OUT) output is at a minimum when signal l is input from SG24 and signal i is input from SG53.
(chroma interval 3.58MHz/99.3mVp-p)
2. Although no input conditions are indicated for C measurement Nos. 71 to 117, signal l is input from SG24.
Unless otherwise specified in the input conditions, the frequency for SG24 is 15.734kHz.
3. Note that in regards to the measurements shown below, the characteristics change depending on the
floating capacitance.
1) White/dark clipping level
2) Pre-emphasis characteristics
3) REC APC pull-in range
4. When taking measurements, use metal film resistors with an allowable deviation of 1% for R1, R2, R3, and
R5, and use temperature compensation CH types for C1, C2, C3, and C4.
—31—
CXA1700AQ/AR
BUS DECODER
1) Data contents
bit
No.
1
bit
MODE
TEST2
CONTENT
MODE
No.
9
H TEST2
1) Outputs VCO OUT signal to BF VCO
CONTENT
DC 2
The dark clipping level is switched as
(Dark Clip)
shown below. (when white clipping is
(Pin 62).
235% and WDC (Pin 27) is left open)
2) Outputs white/dark-clipped Y
signal to Y REF OUT (Pin 39).
2
TEST1
L
Normal
H
TEST1 mode
10
DC 1
DC 2
DC 1
1) Cuts APC loop and inputs signal from
High
Low
High
85
95
Low
105
115
CAM FSC SHP (Pin 60) to VCO OUT.
(UNIT: %)
2) During REC, outputs burst emphasis
output to REC C OUT (Pin 8).
Switches the amount of the dark clipping
3) For the PB chroma feedback comb
level offset to the white clipping level,
measurement, inputs signal from EXT
C IN (pin 53) to the comb block without
which can be varied in steps of 10%.
11
C MUTE
H Disables MUTE for the chroma signal by
passing it through PB CONV.
L
3
SYNC
the MASK signal.
H PAL (chroma function)
L NTSC
(External input to COMP SYNC (Pin 24) is
L
CORRE H
PAL
signal.
12
13
possible).
4
L Mutes the chroma signal by the MASK
Normal
H Sync Separation does not operate.
OFF
OFF
CAM REC
H During recording, inputs fsc, locked to
Normal
burst, from CAM FSC SHP (Pin 60)
H Fixes the correlation pulse High so that
without performing APC with the input
there is always correlation.
5
SHP
L Detects correlation.
frequency conversion using this fsc.
H Sharpness block through (does not pass
Recordable time can be reduced to 0.2
THRU
through fsc Trap, Sharpness, LPF and
seconds or less from power saving mode
EQ)
with separate input.
L
6
ACK OFF
chroma signal, and then performs
L
Normal
H ACK SW does not operate according to
14
ACK DET; always fixed to color mode.
PS
(Power
Changes to power saving mode with
Save)
composite input. Power consumption:
L ACK operation is performed according to
140mW (VCC=4.75V)
ACK DET.
7
8
Normal
H 1) S•PS (31.S=Low)
2) S•PS (31.S=High)
F.B.C. L2
Switches the feedback amount of the FBC
Changes to power saving mode with
(Feed
(feedback comb).
separate input. Power
Back Comb)
∗ Refer to Table 1.
C SEL
consumption:250mW (VCC=4.75V)
L
H During recording, the signal input to EXT
C IN (Pin 53) is input directly to the ACC
15
Normal
—32—
Normal
H Performs Yd playback during playback.
L
amplifier.
L
Yd
Normal
CXA1700AQ/AR
bit
bit
MODE
No.
CONTENT
MODE
No.
16
NCLP2
During playback, switches the noise
17
NCLP1
canceler characteristics.
18
NCL2
19
NCL1
20
CFL2
29
Video AGC
H Video AGC on
30
INSEL
H Selects VIN2 (Pin 28) input.
(INput
L Selects VIN1 (Pin 30) input.
L Video AGC off
The typical value of PB Y comb filter
SELection)
depth is switched as shown below.
31
S
(Low frequency: insignificant level input)
21
22
CFL1
E
High
Low
High
–10dB
–6dB
Low
–1.5dB
0dB
PB
H Playback mode
L Recording mode
H Hi-8 mode
L Standard mode
23
H For separate signals during recording.
L For composite signals during recording.
32
CFL1
CFL2
CONTENT
F.B.C. L1
Table 1. Chroma Feedback Comb Loop Gain
Switches the feedback amount of the
F.B.CL1
chroma feedback comb.
Low
∗ Refer to Table 1.
24
JOG
H 1) High-speed ACC mode.
2) During playback, does not perform
dropout compensation.
25
EDIT
L
Normal
H
EDIT mode
1) During recording, the chroma signal is
Y/C separated by the BPF only without
passing though the comb filter.
2) During playback, cuts the feedback
loop of chroma feedback comb.
3) During playback, makes the sharpness
characteristics flat.
L
26
CCIR
Normal
H For fsc = 4.43MHz
L For fsc = 3.58MHz
27
W CCD
28
MUTE
Fix to Low.
H 1) Mutes the Y and chroma signals.
2) Discharges the charge in the external
clamp capacitance for VIN1 (Pin 30)
and VIN2 (Pin 28) and in the external
capacitance for AGC TC1 (Pin 29).
L
Normal
—33—
High
F.B.C
Low
0dB
+1.9dB
L2
High
+4.8dB
+6.7dB
CXA1700AQ/AR
2) Timing chart
Pin 49 CK (Clock)
Pin 48 SI (Signal In)
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
For CXA1700A data
Pin 47CS
(Chip Select)
Over 2µs
Over 2µs
3) Input conditions
Item
Input high level for Pins 47, 48, and 49
Input low level for Pins 47, 48, and 49
Clock frequency
Setup time
Hold tie
CS fall time to SI start time
Final CK rise time to CS rise time
Symbol
Min.
VB-H
VB-L
fCK
tSU
2.0
tHLD
t1
t2
—34—
400
400
2
2
Typ.
Max.
Unit
1.0
1.3
V
V
MHz
nsec
nsec
µsec
µsec
Latch
CXA1700AQ/AR
TEST2
TEST1
SYNC OFF
CORRE H
SHP THROU
ACK OFF
FBC L2
C SEL
DC2
DC1
C MUTE OFF
PAL
CAMREC
PS
Yd
NCLP2
BUS DECODER Mode Condition Table (NTSC)
Standard
L L L L
L ∗ L
L L H H L *
REC
Standard
L L L L
L ∗ L
L L H L L *
EDIT
SEARCH
REC
Standard
L L L L
L ∗ L ∗ ∗ L L L L L
S
Standard
L L L L
L ∗ L
L L L L L *
RCA
Standard
L L L L
L ∗ L
L L L L L *
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
CAMERA STAND-BY
VTR
PB
Normal Hi-8
PB
Standard
EDIT Hi-8
Standard
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Don't care "∗". In addition, select for the blank SHP THRU column based on the system configuration;
for other blanks according to the characteristics.
NCLP1
NCL2
NCL1
CFL2
CFL1
E
FBCL1
JOG
EDIT
CCIR
WCCD
MUTE
Video AGC
INSEL
S
PB
Note
SP
LP
SP
LP
SP
LP
SP
LP
Standard
∗ ∗ ∗ ∗ ∗ L ∗ L L L L L H H H L
REC
Standard
∗ ∗ ∗ ∗ ∗ L ∗ L L L L L H H H L
EDIT
SEARCH
REC
Standard
L ∗ H H L L L ∗ ∗ ∗ H
Standard
∗ ∗ ∗ ∗ ∗ L ∗ L L L L L H H H L
RCA Standard
∗ ∗ ∗ ∗ ∗ L ∗ L L L L L H L L L
CAMERA STAND-BY
VTR
PB
S
Normal Hi-8
PB
Standard
EDIT Hi-8
Standard
SP
LP
SP
LP
SP
LP
SP
LP
—35—
H
H
L
L
H
H
L
L
∗
∗
∗
∗
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
∗
H
H
H
H
H
H
H
H
—36—
Signal
waveform
0.5Vp-p
Pin No. 28 30 34 32 23 21
36
53
63
64
36
32
CLP
+
+
2.0Vp-p
DDS
VIDEO
AGC
MUTE
CLP
–
VCA
14 5
BPF
EQ
TRAP
CLP
ACC
LPF
14
CHROMA BURST
EMPH
EMPH
TRAP
0.5Vp-p
EQ
SHP
DLOUT1
EQ.
21
+ +
EXT C IN
C OUT
C IN
VIDEO OUT
Y IN
34
CLP
CLP
LPF
39
REC
CONV
EQ
REC
CLPF
5
Y COMB EMPH
OUT
IN
ACK
SW
HARD
CLIP
SUB
EMPH
0.5Vp-p
CLP
MAIN
EMPH
W/D
CLIP
+
Y OUT
28
30
DLIN1
CCD
+
+
VIN2
VIN1
SYNC
SEP
COMPSYNC
24 23
CARR
DEVI
SMEAR
63
–
LIM
REC C OUT
8
Y RF OUT
39
0.32Vp-p
MOD
8
0.3Vp-p
Description of Operation
1. Signal path during composite recording
Composite signals input from VIN1 (Pin 30) and VIN2 (Pin 28) are selected by mode INSEL, passed through the VIDEO AGC, and Y/C separated by the
comb filter. The Y signal is output to Y COMB OUT (Pin 14). Next, level adjustment is performed externally and then the signal is input to EMPH IN (Pin
5), after which hard clipping, emphasis, white/dark clipping, and FM modulation are performed and then the signal is output from Y RF OUT (Pin 39). In
addition, the Y OUT (Pin 39). In addition, the Y OUT (Pin 34) signal is input to Y IN (Pin 32), and then the monitor signal is output from VIDEO OUT (Pin
36).
On the other hand, Y/C-separated C signal passes through the BPF and then along with being output to C OUT (Pin 63), the signal is also passed through
ACC, chroma emphasis, and burst emphasis, low frequency converted, is passed though a LPF and then output from REC C OUT (Pin 8).
CXA1700AQ/AR
+
—37—
0.2Vp-p
PBC
BPF
+
C TRAP
–
0.5Vp-p
12
HPF
MAIN
SUB
DEEM DEEM
EQ
23
–
45
CCD
DL IN 1
A TT
+
TRAP
HHS
CANCEL
+ +
14 5 34 32
PB
CONV
CLIP
COMP
–
LPF
EQ
21
19
EQ
SHP
0.5Vp-p
DL OUT 1
VCA
VCA
CLP
CLP
A TT
–
+
LIM
+
+
0.17Vp-p
ACC
LPF
COMP TC
+
7 10
DEMOD
9
HPF
BPF
12
ACK
SW
EQ
Peaking
Y COMB
OUT
14
63
6
5
C OUT
NCTC
IN
HPF
EMPH
IN
64
–
C IN
LIM
CLP
A TT
63 64
LPF
CLP
MUTE
+
CLP
DDS
0.3Vp-p
+
AA
AA
0.3Vp-p
BURST CHROMA
DEEM
DEEM
fsc
TRAP
DL OUT 2
LPF
+
PBC
LPF
LIM
10
–
Signal
waveform
Pin No. 41
45
41
DEEMPH IN
+
PBC IN
YRF IN
7
DEMOD OUT
EQ
Peaking
Y IN
Y OUT
OUT
36 VIDEO
32
34
36 ; 2Vp-p
23 21 19 ; 0.5Vp-p
23 21 19 36
2. Signal path during playback
The playback Y RF signal, after having passed though RF AGC and a soft limiter, is input to Y RF IN (Pin 41). After FM demodulation, the signal passes
through the LPF and is then output from DEMOD OUT (Pin 7). After the waveform is formed and the level is adjusted by an external EQ and peaking
amplifier, the signal is input to DE EMPH IN (Pin 10), after which clipping compensation, de-emphasis and HHS cancellation are performed. Next, cross
talk cancellation is performed by a comb filter and then the signal is output from Y COMB OUT (Pin 14). After the waveform is formed and the level is
adjusted by an external EQ (LPF) and peaking amplifier, the signal is input to 5 EMPH IN, where it passes through a noise canceler and is then output from
Y OUT (Pin 34).
On the other hand, the playback RF signal, after passing through AFM and ATF TRAP, is input to PBC IN (Pin 45), after which the low-frequency C signal
is separated by the PBC LPF. Next, the playback C signal, which has undergone level control by the ACC and frequency conversion by PB CONV and
PBC BPF, is subjected to cross talk cancellation by the comb filter, and then after undergoing burst de-emphasis and chroma de-emphasis, the signal is
output from C OUT (Pin 63).
By inputting the playback Y signal (Y OUT (Pin 34) output) to Y IN (Pin 32) and the playback C signal C(C OUT (Pin 63) output) to C IN (Pin 64), the Y/C
mixed signal is output from VIDEO OUT (Pin 36).
CXA1700AQ/AR
CXA1700AQ/AR
3. REC LEVEL adjustment
The video signal input to VIN1 (Pin 30) and VIN2 (Pin 28) is selected by mode INSEL, and when mode
video AGC is High, the signal is passed through SYNC AGC and PEAK AGC and then is output from Y
OUT (Pin 34). The output level can be adjusted by applying an external DC bias (1.3 to 2.6V [Vcc =
4.75V]) to RECL/JVD (Pin 31). In the case of white 100%, 500mVp-p input, the following are the standard
characteristics.
Y OUT (Pin 34) output level
(mVp-p)
600
500
400
1.0
1.5
2.0
2.5
3.0
REC L/JVD (Pin 31) control DC (V)
4. MASK DDS
DDS/MASK (Pin 26) is the VOW (character level) signal and the VOB (character background) and
masking timing pulse input pin. The threshold value for source signal and VOB/masking is 1.1V, and the
threshold value for VOB/masking and VOW is 2.0V (when Vcc = 4.75V). In addition, the VOW replacement
signal level can be varied within the range of the DC level (2.3V to 3.0V) for this pin; those standard
characteristics are shown below.
Y OUT (Pin 34) replacement
signal luminance level
(%)
100
80
60
2.0
3.0
2.5
MASK/DDS (Pin 26) DC level
( VCC=4.75V)
—38—
CXA1700AQ/AR
Y RF OUT (Pin 39) white/dark clipping level
(mode test 2: High)
5. White/dark clipping adjustment
The white/dark clipping levels can be varied connectedly using the DC level of WDC (Pin 27). In addition,
the dark clipping level is switched independently by DC1 and DC2 of the mode. The standard
characteristics of Y pre-emphasis are shown below. (when white 100%, 500mVp-p input to Pin 5 EMPH
IN)
(%)
White Clip Level
200
100
100%
0
Dark Clip Level
–100
2.6
when open 2.5
(DC1, DC2)
(H, H)
(L, H)
(H, L)
(L, L)
2.4
WDC DC (Pin 27) level (V)
(VG1=2.05V)
—39—
CXA1700AQ/AR
6. Carrier/deviation adjustment
gm1=K1IXDEV
Dev IN
IXCAR
gm1
Carr
Cont
44
CARR CONT
IXDEV
DEV CONT
43
Dev
Cont
FM
Mod
gm2=K2IXSME
Sme IN
LIM
39 YRFOUT
gm2
IXSME
SMEAR
CONT
42
Smear
Cont
The Y FM modulation carrier frequency is adjusted by applying an external DC bias to CARR CONT (Pin
44). When carrier adjustment is performed, gm1 and gm2, the deviation/smear gain, change in proportion
to IXCAR at the same time. This results in the FM modulator sensitivity being roughly adjusted for the Dev
IN/Sme IN signal level. Fine adjustment of the deviation frequency is accomplished by the DC bias applied
to DEV CONT (Pin 43).
—40—
CXA1700AQ/AR
Y RF OUT (Pin 39) carrier frequency
6-1. Carrier frequency adjustment
The standard characteristics of carrier frequency for the CARR CONT (Pin 44) DC bias (1.8V to Vcc)
when bias was applied to EMPH IN (Pin 5) with VG1 are shown below.
(MHz)
5
4
3
2
3
4
5
CARR CONT (Pin 44) DC level (V)
(VCC=4.75V)
1
6-2. Deviation frequency adjustment
The standard characteristics of deviation frequency for the DEV CONT (Pin 43) DC bias (1.8V to Vcc)
when bias was applied to EMPH IN (Pin 5) with VG1 + 0.5V after carrier frequency adjustment are shown
below.
Y RF OUT (Pin 39) deviation frequency
(MHz)
2.0
1.5
1.0
1
2
3
4
5
DEV CONT (Pin 44) DC level (V)
(VCC=4.75V)
—41—
CXA1700AQ/AR
REC C OUT (Pin 8) (mode test 1: High)
/chroma emphasis fo
7. Chroma emphasis fo adjustment
The center frequency of the chroma emphasis characteristics is adjusted by the DC bias (1.8V to 3.8V
[Vcc = 4.75V]) applied to CE CONT (Pin 1). The standard characteristics of center frequency for the CE
CONT (Pin 1) DC level are shown below.
(Hz)
+100k
fsc
–100k
2
3
CE CONT (Pin 1) DC level (V)
4
(VCC=4.75V)
8. ACC/ACK standard characteristics
REC C OUT (Pin 8) output level
(0dB output for 143mV input)
(dB)
0
–5
ACK OFF
ACK ON
–10
–30
–20
–10
0
10
EXT C IN (Pin 53) input level
(143mVp-p=0dB)
—42—
CXA1700AQ/AR
9. Y cross talk cancellation
CCD
LPF
EQ
DL IN1
DL OUT2
23
+
19
+
Playback C
Playback Y
+
–
CLAMP2
C comb
TRAP
LIM
DOC
TRAP
VCA2
ATT
+
CFL1
CFL2
–
OUT
EQ
De-emphasized playback Y signal is input to the comb block. By passing the differential component of the
nH signal and the (n+1)H signal through the limiter, the cross talk component, which is line noncorrelation,
is extracted. Cross talk cancellation is accomplished by subtracting this cross talk component from the nH
playback Y signal.
In addition, by switching mode CFL1 and CFL2, the comb depth characteristics of PBY cross talk
cancellation can be changed . The standard characteristics of comb depth for low frequency
(approximately 1MHz) and insignificant input level (MAIN EMPH TC (Pin 3) 7.9mVp-p = –30dB) input are
shown below.
PB Y Comb Depth
64ƒH
65ƒH
CFL1
CFL2
High
Low
ƒ
High
Low
–10dB
–1.5dB
–6dB
0dB
—43—
CXA1700AQ/AR
10. PB C cross talk cancellation
CCD
23
LPF
EQ
DL IN1
DL OUT1
21
–
+
CLAMP1
C comb
+
+
VCA1
Y comb
OUT
+
Playback Y
+
ATT
FBCL1
FBCL2
ACK • BF
–
HPF
+
NOCORRE + EDIT + BF
Playback C signal
The playback C signal which passes through the BPF is input after frequency conversion. The feedback
chroma comb filter is configured as shown above.
By switching mode FBCL1 and FBCL2, the feedback loop gain from the Y comb is changed as shown
below.
Feedback loop gain
FBCL1
FBCL2
High
Low
During editing
Feedback loop
gain is large
High
Low
6.7dB
1.9dB
4.8dB
0dB
ƒ
227ƒH
228ƒH
When the feedback loop gain is increased the S/N ratio can be improved, but note that color smear in the
vertical direction and transient response get worse.
—44—
CXA1700AQ/AR
11. PB Y noise cancellation
When an external HPF is configured as shown below, the standard characteristics of PB Y noise
cancellation are as shown below, depending on the switching of input signal level, mode NCL1/2, external
HPF and NCLP1/2.
EMPH IN
5
NC TC IN
6
500mVp-p
=0dB
C
+
CLP
CLP
–
MUTE
+
LIM
LPF
–
ATT
1k
NCL1 NCL2
2.37v
11
NCLP1 NCLP2
VGI
1) Changes in frequency characteristics due to the input level
Y OUT (Pin 34)/EMPH IN (Pin 5) I/O
gain
(dB)
–3dB
0
–10dB
NCL 1, 2 = H, H
–20dB
–2
NCLP 1, 2 = H, H
External HPF (1kΩ/82pF)
–4
–6
–30dB
–8
10k
100k
1M
10M
Input frequency (Hz)
—45—
DDS
34
CXA1700AQ/AR
Y OUT (Pin 34)/EMPH IN (Pin 5) I/O gain
2) Changes in frequency characteristics due to switching of mode NCL1/2
(dB)
L, L
0
NCLP 1, 2 = H, H
H, L
–2
External HPF (1kΩ/82pF)
L, H
–4
–6
H, H
–8
10k
100k
1M
Input frequency (Hz)
10M
Y OUT (Pin 34)/EMPH IN (Pin 5) I/O gain
3) Changes in frequency characteristics due to switching of external HPF and mode NCLP1,2
(dB)
0
NCL 1, 2 = H, H
–2
The following four conditions are compared:
NCLP1 NCLP2
–4
1
3
–6
2
4
–8
10k
100k
1M
10M
Input frequency (Hz)
—46—
External HPF
L
1kΩ/220pF
H
L
1kΩ/220pF
L
H
1kΩ/82pF
H
H
1kΩ/82pF
1
L
2
3
4
CXA1700AQ/AR
12. BF OUT pulse
The timing for C SYNC (Pin 24) output pulse and BF VCO (Pin 62) output pulse changes in each mode as
shown below. Note that the BPF delay time between C OUT (Pin 63) and C IN (Pin 64) during PAL
playback is designed to be 200ns. In addition, the BF pulse width WdBF is constant.
TdBF
WdBF
PB
: TdBF (PB)
NTSC • REC : TdBF (PB) + 250nsec
PAL • REC
: TdBF (PB) + 390nsec
—47—
CXA1700AQ/AR
Adjustment Procedure (Refer to Application Circuit.)
1. REC Y level adjustment
Mode :
REC, 29 video AGC = High
Input signal :
color bar 500mVp-p (Pin 30 V IN1)
Adjustment method : When VIDEO OUT (Pin 36) is terminated with 75Ω, adjust RV105 (EE LEVEL) so
that the output is 1Vp-p.
2. Y/C separation adjustment
Mode:
REC, 5 SHP THRU = High
Input signal :
color bar 500mVp-p (Pin 30 V IN1)
Adjustment method : Adjust RV110 (YC.SEP) → RV103 (COMB.ADJ) → RV110 (YC.SEP) in turn so that
the residual chroma component at Y COMB OUT (Pin 14) is minimum.
3. Emphasis input Y level adjustment
Mode :
REC
Input signal :
color bar 500mVp-p (Pin 30 V IN1)
Adjustment method : Adjust RV112 (EMPH.Y.LEV) so that the Y signal level at EMPH IN (Pin 5) is
500mVp-p.
4. Y-FM carrier deviation adjustment
Mode :
REC, 22 E = Low (standard mode)
Input signal :
100% white, 500mVp-p (Pin 30 V IN1)
Adjustment method : While monitoring the Y RF OUT (Pin 39) signal with a spectrum analyzer, adjust
RV108 (CARR) so that the H SYNC spectrum (carrier) is 4.2MHz in standard mode,
and adjust RV107 (DEV) so that the 100% white Y level spectrum is 5.4MHz in
standard mode.
5. Chroma emphasis fo adjustment
Mode :
REC, 2 TEST1 = high
Input signal :
color bar 500mVp-p (Pin 30V IN1)
Adjustment method : Adjust RV102 (CEMPH) so that the level of the flat portion of the chroma signal
after burst emphasis output to REC C OUT (Pin 8) is minimum.
6. PB Y level 1 adjustment
Mode :
PB
Input signals :
PB Y RF 200 =mVp-p (Pin 41 Y RF IN)
Adjustment method : Adjust RV111 (PB.Y.LEV1) so that DL IN 1 (Pin 23) Y signal level is 500mVp-p.
7. PB Y level 2 adjustment
Mode :
PB
Input signal :
PB Y RF 200mVp-p (Pin 41 Y RF IN)
Adjustment method : When VIDEO OUT (Pin 36) is terminated with 75Ω, adjust RV113 (PB.Y.LEV2) so
that the output is 1Vp-p.
Note on Operation
• Connect NC (Pin 17) to GND directly.
• I REF (Pin 55) resistance 18k, determines the reference current. Employ a metallic film resistance and of
allowable difference ±1%.
—48—
CAM FSC
DOP
CS
SI
CK
HCHG
VA SWP
PB RF
REC C RF
REC Y RF
C
Y
VIDEO OUT
SOUT
SOFT
LIMITER
RF
AGC
AFM
TRAP
LPF
CTRAP
ATF
TRAP
R101
10k
47µ
C103
4.7
220
100p
C106
L101
C104
0.47
47k
R110
3.3
3.3
C207
I/0 2
I/0 1
V DD
SIGIN
1 2 3 4 5 6 7
PCOUT
14 13 12 11 10 9 8
OUT
C150
1000p
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
CXA 1700A R
C EMPH
470
3300 R134
R113
10
C132
10
1k
220p
470p
390p
330p
C140
C139
0.47
C137
1k
47
R130 C136
C135 10
0.01 C134
C133
0.01
1k
C138
R132
R131
COMB ADJ
C131
C130
CCD OUT
LPF
RV103
47k
CXL5502
0.01
C211
Y/C SEP
EQ
YC SEP
PB
Y EQ
DEMOD
OUT EQ
PB Y LEV2
R V113
1k
DEV
R V112
EMPH Y LEV
PB Y LEV1
PB
REC
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party and other right due to same.
10k
10k
47k
R156
47k
R102 R103
CARR
RV108
R155
RV107
0.01
1K C102
C101 10
68
R104
R106
0.22
C105
R V105
C110
EE LEVEL
C161
Y
BUFFER
C111
C160
R154
330p
C
BUFFER
R112
6800
1
C159 0.022
C158
R153
Y
C157
C
1000p
R152 5600
39
C156
R151
0.68
18k
SIN
R116
C116 C115
10
L150
VIDEO IN
D110
R115
R150
1
39
82p
0.01 C153
DDS
MASK
JOG VD
D111
0.01
22µ
C155
C154
R105
39
C113
VSS
C SYNC
39
V DD
GND
C151
47k
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
R113
10
C114
10µ C209
VSS
REG 4.75V
C117
L201
C201
10µ
C204
3.3
VSS
R201
1
C206
C205
0.01
AB
C202
1M
10
C118
R111
39
10
C112
32
31
30
0.47
29
R114 39
R120
0.47
28
27
26
0.01
R202 R203 C208
VCOIN
C203
3.3
C120
10
C121
10
0.01
C119
10
21
20
47
k
SHP
0.01
XT AL
CL K
C210
0.01
1.2k
82k 1k L202 0.1
3.3
19
18
17
R V110
VCOOUT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R V102
25
24
23
22
0.01
R V120
C152
10
R135
—49—
47k
R V111
Application circuit (NTSC NORMAL)
CXA1700AQ/AR
REC C RF
REC Y RF
CAM FSC
JOG
DOP
SI
CK
CS
VA SWP
HCHG
PB RF
Y
SOFT
LIMITER
RF
AGC
AFM
TRAP
LPF
CTRAP
ATF
TRAP
Y
BUFFER
68
10k
R101
R103
10k
47k
RV108 47k
CARR
R102
10k
10
C102
R156
0.01
R155
RV107
1k
C101
R104
R106
0.22
C105
R105
100p
C106
4.7
L101 47µ
220C103
0.47
C110
C104
EE LEVEL
47k
R110
16 15 14 13 12 11 10 9
10µ
10
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
CXA 1700A R
REC
PB
3300
C133 10
C132
0.01
C131
10
C130
10
C213
10
C212
470
C137
1k
470p
C EMPH
390p
330p
C140
0.47
C139
C138220p
R134
1k
R132
1k
0.01 C134
C135
10
47 R130 C136
R131
COMB ADJ
47k
RV103
CXL1506
R133
1 2 3 4 5 6 7 8
3.3
DEV
JOG
YC SEP
PB Y LEV2
EQ
Y/C SEP
EQ
B. PHA ADJ
DEMOD
OUT EQ
PB
Y EQ
100k
R314
PHA ADJ
EMPH Y LEV
PB
REC
100k
R316
24 23 22 21 20 19 18 17 16 15 14 13
D301
PB Y LEV1
CCD OUT
LPF
CCD OUT
LPF
PB 4.75V
HD
JOG
DOP
CXA1203
BPF
4.7
3300
R303
1 2 3 4 5 6 7 8 9 10 11 12
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party and other right due to same.
VIDEO OUT
SOUT
C
C
BUFFER
C161
Y
C1606800p R154
C159 3900
C
1
SIN
C1580.022R153
D112
C157
VIDEO IN
D113
C113
0.47
39
R115
R150
1
1k
1M C202
10
L201
C201
C116 0.01
R116
3.3
D110
3.3
D111
39
R120
120 0.1
82k
L202
0.01
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
C SYNC
1000p
DDS
MASK
JOG VD
18k
R V105
47k
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
R122
32
10k
C111
31
SIGIN
VSS
24
39
C114
0.47
AB
VG1
DD
V
VG2
0.01
C119
1
R201
C117
R112
10 R111
39
C112
30
C115
26
25
C211
17
R113
10
R114
29
28
C121
10
18
C118
C152 0.01
10
R V111
C209
0.01
GND
C301
27
1000p
0.68 R152 5600
R151 39
C156
39
CC
V
23
22
XT AL
C153
BELLFL
10 C302
21
R V120
C151
R310
PBCIN
PHASE ADJ
SECACK
PBCIN
R V113
110P
10
C120
SHP
100k
R312
R311
1/2FH
FB/JOG
C303
1H
VCOIN
VSS
PCOUT
2H
VSS
VCOUT
CLK
VSS
C150
100k
100k
NHKC
SECAMIN
DLOP
GAINADJ
VDD
1.2k
C310
1k
R V113
0.01
R V114
R313
C304
0.01
47k
C311
C210
R135
R V102
2200
SECJUMP
FSCIN
SECLPF
SO
AFSEL
APCLP
20
19
47
k
COUT
330p
C307 6800
REG 4.75V
390p
10µ
C204
C205
0.01 3.3
C206
C207
3.3
0.01
R202 R203C208
0.01
HD
1000P R301
C305
2.2
R302
8200 C306
R V112
0.01
C312
1000p
C313
0.01
C314
CSYNC
IR
GND
VREG
PB 4.75V
4700
10k
—50—
4700
Application circuit (PAL NORMAL)
CXA1700AQ/AR
R317 RV115 R315
CXA1700AQ/AR
Package Outline
Unit : mm
CXA1700AQ
64PIN QFP(PLASTIC)
23.9 ± 0.4
+ 0.4
20.0 – 0.1
+ 0.1
0.15 – 0.05
51
0.15
64
20
1
16.3
32
+ 0.4
14.0 – 0.1
52
17.9 ± 0.4
33
+ 0.2
0.1 – 0.05
0.8 ± 0.2
19
+ 0.35
2.75 – 0.15
+ 0.15
0.4 – 0.1
1.0
± 0.12 M
PACKAGE STRUCTURE
PACKAGE MATERIAL
EPOXY RESIN
SONY CODE
QFP–64P–L01
LEAD TREATMENT
EIAJ CODE
∗ QFP064–P–1420
LEAD MATERIAL
SOLDER/PALLADIUM
PLATING
COPPER /42 ALLOY
PACKAGE WEIGHT
1.5g
JEDEC CODE
CXA1700AR
64PIN LQFP (PLASTIC)
12.0 ± 0.2
∗
10.0 ± 0.1
48
33
32
64
17
(0.22)
0.5 ± 0.2
(11.0)
49
A
1
0.5 ± 0.08
+ 0.08
0.18 – 0.03
16
+ 0.2
1.5 – 0.1
+ 0.05
0.127 – 0.02
0.1
0° to 10°
0.5 ± 0.2
0.1 ± 0.1
NOTE: Dimension “∗” does not include mold protrusion.
DETAIL A
PACKAGE STRUCTURE
PACKAGE MATERIAL
EPOXY / PHENOL RESIN
SONY CODE
LQFP-64P-L01
LEAD TREATMENT
SOLDER PLATING
EIAJ CODE
∗QFP064-P-1010-A
LEAD MATERIAL
42 ALLOY
PACKAGE WEIGHT
0.3g
JEDEC CODE
—51—