Ordering number : EN5845
Monolithic Linear IC
LA76075
NTSC Color Television Sets
Features
Package Dimensions
• I2C bus control
• VIF, SIF, Y, C, and deflection blocks on a single chip
unit: mm
3128-DIP52S
[LA76075]
SANYO: DIP52S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V4 max
9.6
V26 max
9.6
V
Maximum power supply current
I21 max
25
mA
Allowable power dissipation
Pd max
Maximum power supply voltage
*Ta ≤ 65°C
V
1.5
W
Operating temperature
Topr
–10 to +65
°C
Storage temperature
Tstg
–55 to +150
°C
Ratings
Unit
*Mounted on paper-backed phenol circuit board
Operating Conditions at Ta = 25°C
Parameter
Recommended power supply voltage
Recommended power supply current
Operating power supply voltage range
Operating power supply current range
Symbol
Conditions
V4
7.6
V26
7.6
V
V
I21
19
mA
V4 op
7.3 to 7.9
V26 op
7.3 to 7.9
V
V
I21 op
17 to 25
mA
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
100198RM (OT) No. 5845-1/35
LA76075
Operating Characteristics at Ta = 25°C, VCC = V4 = V26 = 7.6 V, ICC = I21 = 19 mA
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
[Circuit Voltages and Currents]
Horizontal power supply voltage
HVCC
IF power supply current
I4 (IFICC) IF AGC : 5 V
Video, chroma, and vertical power supply current
I26 (YCVICC) 79.5
7.2
7.6
8.0
V
38
46
54
mA
79.5
93.5
107.5
mA
Vdc
[VIF Block]
AFT output voltage with no signal
VAFTn
With no signal
2.8
3.8
4.8
Video output voltage with no signal
VOn
With no signal
4.7
4.9
5.1
APC pull-in range (U)
fPU
After APC and PLL DAC adjustment
fPL
After APC and PLL DAC adjustment
APC pull-in range (L)
Maximum RF AGC voltage
VRFH
CW = 91 dBµ, DAC = 0
Minimum RF AGC voltage
VRFL
CW = 91 dBµ, DAC = 63
RF AGC delay point (@DAC = 0)
RFAGC0
DAC = 0
RF AGC delay point (@DAC = 63)
RFAGC63 DAC = 63
1
Vdc
MHz
1
MHz
7.7
8.2
9.0
0
0.2
0.4
96
Vdc
Vdc
dBµ
86
dBµ
Maximum AFT output voltage
VAFTH
CW = 93 dBµ, Variable frequency
6.2
6.5
7.6
Vdc
Minimum AFT output voltage
VAFTL
CW = 93 dBµ, Variable frequency
0.5
0.9
1.2
Vdc
AFT sensitivity
VAFTS
CW = 93 dBµ, Variable frequency
–33
–25
–17
mV/kHz
VO
93 dBµ, 87.5% Video MOD
1.8
2.0
2.2
Vp-p
VOtip
93 dBµ, 87.5% Video MOD
2.4
2.6
2.8
Vdc
43
46
dBµ
Video output level
Sync tip level
Input sensitivity
Vi
Output at –3 dB
Video/sync ratio
V/S
93 dBµ, 87.5% Video MOD
2.5
3.0
Differential gain
DG
93 dBµ, 87.5% Video MOD
2
10
%
Differential phase
DP
93 dBµ, 87.5% Video MOD
2
10
deg
Video signal-to-noise ratio
S/N
CW = 93 dBµ
920-kHz beat level
I920
V3.58 MHz/V920 kHz
2.4
55
58
dB
–45
dB
484
mVrms
55
dBµ
[SIF Block]
FM output level
SOADJ
464
474
FM limiting sensitivity
SLS
Output at –3 dB
FM frequency characteristic
(fm = 50 Hz)
SF50
fm = 50 Hz
–0.5
+3.0
dB
FM frequency characteristic
(fm = 100 Hz)
SF100K
fm = 100 kHz
–0.5
+3.0
dB
FM total harmonic distortion
STHD
FM = ±25 kHz
AM rejection
SAMR
AM = 30%
SIF signal-to-noise ratio
SSN
0.5
%
40
dB
60
dB
[Audio Block]
Maximum gain
AGMAX
Variable range
ARANGE
Left/right balance
f characteristic
Muting
Left/right crosstalk
Total harmonic distortion
Signal-to-noise ratio
ABAR
1 kHz
–1.5
1.0
60
67
+3.5
dB
dB
1 kHz, 400 mVrms, Vol : MAX
–2
+2
dB
AF
20 kHz
–3
+3
dB
AMUTE
20 kHz
70
ACT
20 kHz
70
ATHD
ASN
dB
dB
1 kHz, 400 mVrms, Vol : MAX
0.5
DIN.Audio
65
75
dB
dB
[Chroma Block]
ACC amplitude characteristic 1
ACCM1
Input: +6 dB/0 dB 0 dB = 40IRE
0.8
1.0
1.2
Times
ACC amplitude characteristic 2
ACCM2
Input: –14 dB/0 dB
0.7
0.9
1.0
Times
B-Y/Y amplitude ratio
CLRBY
65
90
110
%
Color control characteristic 1
CLRMN
Color MAX/MOM
1.7
2.0
2.3
Times
Color control characteristic 2
CLRMM
Color MAX/MIN
33
40
50
dB
Color control sensitivity
CLRSE
1
2
4
%/bit
Tint center
TINCEN
+5
deg
TINT NOM
–15
Continued on next page.
No. 5845-2/35
LA76075
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
Tint control maximum
TINMAX
TINT MAX
30
45
60
Tint control minimum
TINMIN
TINT MIN
–60
–45
–30
deg
Tint control sensitivity
TINSE
2.0
deg/bit
0.7
Demodulator output R-Y/B-Y ratio
RB
R/B Drive : Adjusted value
0.75
0.85
0.95
Demodulator output G-Y/B-Y ratio
GB
R/B Drive : Adjusted value
0.28
0.33
0.38
deg
Demodulator angle B-Y/R-Y
ANGBR
99
104
109
deg
Demodulator angle G-Y/B-Y
ANGGB
230
240
250
deg
–36
–26
–20
dB
+350
Hz
–350
Hz
deg
Killer operation point
KILL
Chroma VCO free run frequency
Chroma pull-in range (+)
CVCOF
PULIN+
Chroma pull-in range (–)
PULIN–
0 dB = 40 IRE
Deviation from 3.579545 MHz
–350
350
Hz
Auto Flesh characteristic 73°
AF073
8
20
30
Auto Flesh characteristic 118°
AF118
–7
0
+7
deg
Auto Flesh characteristic 163°
AF163
–30
–20
–8
deg
Overload characteristic 1
OVL1
3.5
4.9
Overload characteristic 2
OVL2
6
9.5
Overload characteristic 3
OVL3
9
fsc output amplitude
Vfsc
15
300
mVp-p
[Chroma BPF Block]
Peaker amplitude characteristic 3.08 MHz
CPE308
3.53 MHz standard
–5
–3
–1
dB
CPE
3.28 MHz standard
–0.5
+1.5
+3.5
dB
Peaker amplitude characteristic 4.08/3.08 MHz
CPE05
3.08 MHz standard
1
4
7
dB
Band pass amplitude characteristic 3.08 MHz
CPE308
3.53 MHz standard
–3.5
–1.5
+0.5
dB
Band pass amplitude characteristic 3.88/3.28 MHz
CBP
3.28 MHz standard
–2
0
+2
dB
Band pass amplitude characteristic 4.08/3.08 MHz
CBP05
3.08 MHz standard
–2.5
0
+2.5
dB
Peaker amplitude characteristic 3.88/3.28 MHz
[Video Block]
Overall video gain at maximum contrast
PIX127
10
12
14
dB
Contrast adjustment characteristic (Normal/max)
PIX63
–7.5
–6.0
–4.5
dB
Contrast adjustment characteristic (Min/max)
PIX0
–15
–12
–9
dB
Video frequency characteristic (f0 = 2)
Y f 02
–12
–9
6
dB
Chroma trapping (f0 = 0)
Ctrap
DC propagation
ClampG
Y delay (f0 = 1)
YDLY
Maximum black stretching gain
–25
95
100
dB
105
430
%
ns
BKSTmax
12
16
20
IRE
BKSTH
–2
0
+2
IRE
(normal)
Sharp16
4.0
6.0
8.0
dB
(max)
Sharp31
9.0
11.5
14.0
dB
(min)
Sharp0
–6.0
–3.5
–1.0
dB
Coring
0.1
0.5
1.2
dB
RGBBLK
1.4
1.7
2.0
V
Black stretching threshold (40 IRE ∆black)
Sharpness variable range
Coring characteristic
Horizontal/vertical blanking output level
[On Screen Display (OSD) Block]
FSTH
0.9
1.2
1.7
V
Red RGB output level
OSD Fast Switch threshold
ROSDH
120
165
200
IRE
IRE
Green RGB output level
GOSDH
70
120
140
Blue RGB output level
BOSDH
85
120
155
IRE
Analog OSD Red output level gain match
RRGB
1.12
1.4
1.68
Ratio
Linearity
LRRGB
45
50
60
%
Continued on next page.
No. 5845-3/35
LA76075
Continued from preceding page.
Parameter
Analog OSD Green output level gain match
Symbol
Conditions
Ratings
min
typ
max
Unit
BRGB
0.8
1.0
1.2
Ratio
LBGRGB
45
50
60
%
Brightness control (normal)
BRT63
2.0
2.50
3.0
V
Hi bright (max)
BRT127
20
25
30
IRE
Low bright (min)
BRTO
–30
–25
–20
IRE
Cutoff control (min)
Vbias0
1.5
2.0
2.5
V
Bias control (max)
Vbias27
3.1
3.6
4.1
Resolution
Vbiassns
Sub bias control resolution
Bsbiassns
Drive adjustment Red/Blue maximum output
RBout127
Gout
2.3
Linearity
[RGB Output (Cutoff, Drive) Block]
Green maximum output
Output attenuation
–1
RBout0
*ϒ
Gamma characteristic
* = R, G, B
V
6.4
mV/Bit
6.4
mV/Bit
2.7
Vp-p
Vp-p
7
9
11
dB
78
85
92
IRE
[Deflection Block]
Synchronization separation sensitivity
Ssync
3
8
13
IRE
Horizontal free run frequency deviation
∆fH
15600
15734
15850
Hz
fH PULL
±400
Horizontal pull-in range
Hz
Horizontal output pulse width @0
Hduty0
ON time, Hduty : 0
36.1
37.6
39.1
µs
Horizontal output pulse width @1
Hduty1
ON time, Hduty : 1
34.1
35.6
37.1
µs
Horizontal output pulse saturation voltage
V Hsat
0
0.2
0.4
V
9.5
10.5
11.5
µs
Horizontal output pulse phase
Horizontal position adjustment range
HPHCEN
HPHrange 5 bits
Horizontal position maximum range for adjustment
HPHstep
Operating voltage for X-ray protection circuit
VXRAY
±2.4
µs
530.0
ns
0.58
0.68
0.78
V
[Vertical screen size adjustment]
Vertical ramp output width @64
Vsize64
VSIZE : 1000000
1.32
1.62
1.92
Vp-p
Vertical ramp output width @0
Vsize0
VSIZE : 0000000
0.63
0.93
1.23
Vp-p
Vsize127 VSIZE : 1111111
2.00
2.30
2.60
Vp-p
0.95
0.97
0.99
ratio
Vdc
Vertical ramp output width @127
[High-voltage dependent vertical size compensation]
Vertical size compensation @0
Vsizecomp VCOMP : 00
[Vertical screen position adjustment]
Vertical ramp DC voltage @64
Vdc64
VDC : 1000000
3.39
3.74
4.09
Vertical ramp DC voltage @0
Vdc0
VDC : 0000000
2.56
2.91
3.26
Vdc
Vdc127
VDC : 1111111
4.21
4.56
4.91
Vdc
Vertical linearity @16
Vlin16
VLIN : 100000
0.84
0.99
1.14
ratio
Vertical linearity @0
Vlin0
VLIN : 000000
1.25
1.40
1.55
ratio
Vertical linearity @31
Vlin31
VLIN : 111111
0.56
0.71
0.86
ratio
Vertical ramp DC voltage @127
Vertical S-correction @16
VScor16
VS : 10000
0.57
0.72
0.87
ratio
Vertical S-correction @0
VScor0
VS : 00000
0.85
1.00
1.15
ratio
Vertical S-correction @31
VScor31
VS : 11111
0.38
0.53
0.68
ratio
East/West DC voltage @32
EWdc32
EWDC : 100000
3.35
3.80
4.25
Vdc
East/West DC voltage @0
EWdc0
EWDC : 000000
1.40
1.35
2.30
Vdc
East/West DC voltage @63
EWdc63
EWDC : 111111
5.25
5.70
6.15
Vdc
0.9
1.1
1.3
V
Horizontal size adjustment
[High-voltage dependent horizontal size compensation]
Horizontal size compensation @0
Hsizecomp HCOMP : 000
Continued on next page.
No. 5845-4/35
LA76075
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
[Pincushion distortion compensation]
East/West parabola amplitude @32
EWamp32 EWAMP : 100000
1.55
1.90
2.25
Vp-p
East/West parabola amplitude @0
EWamp0 EWAMP : 000000
0.00
0.03
0.35
Vp-p
East/West parabola amplitude @63
EWamp63 EWAMP : 111111
3.45
3.80
4.15
Vp-p
V
[Keystone distortion compensation]
East/West parabola tilt @32
EWtilt32
EWTILT : 100000
–0.28
0.12
0.52
East/West parabola tilt @0
EWtilt0
EWTILT : 000000
–1.76
–1.36
–0.96
V
East/West parabola tilt @63
EWtilt63
EWTILT : 111111
1.17
1.57
1.92
V
[Corner distortion compensation]
East/West parabola corner top
EWcorTOP ORTOP : 1111-0000
0.7
1.0
1.3
V
East/West parabola corner bottom
EWcorBOT CORBOTTOM : 1111-0000
0.8
1.1
1.4
V
No. 5845-5/35
LA76075
LA76075 Bus Control Register Bit Allocation Map
IC Address (WRITE) : 10111010
(Bits are transmitted in this order.)
No. 5845-6/35
LA76075
LA76075 Bus Control Register Bit Allocation Map
(Bits are transmitted in this order.)
LA76075 Bus Status Register Bit Allocation Map
IC Address (READ) : 10111011
No. 5845-7/35
LA76075
LA76075 Bus Data
Unit : Decimal
No. 5845-8/35
LA76075
LA76075 Bus Initial Test Conditions
No. 5845-9/35
LA76075
LA76075 Bus : Control Register Descriptions
Control Register Descriptions
Phase alignment for sync signal and flyback pulse
No. 5845-10/35
LA76075
LA76075 Bus Control Register Descriptions
Control Register Descriptions
LA76075 Bus Control Register Truth Table
LA76075 Bus Status Byte Truth Table
No. 5845-11/35
LA76075
Measurement Conditions at Ta = 25°C, VCC = V4 = V26 = 7.6 V, ICC = I21 = 19 mA
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Circuit Voltage and Current]
Horizontal power supply
voltage
HVCC
I4
IF power supply current
Video, chroma, and
vertical power supply
voltage
(IFICC)
4
I26
(YCVICC)
Feed a 19-mA current to pin 21 and measure the voltage at
Initial
that pin.
21
26
No
signal
Apply 7.6 V to pin 4 and measure the DC current (mA) flowing
Initial
in. (Apply 5 V to the IF AGC pin.)
Apply 7.6 V to pin 26 and measure the DC current (mA)
Initial
flowing in.
No. 5845-12/35
LA76075
VIF Block Input Signals and Measurement Conditions
1. Input the input signals to the VIF IN pin noted on the measurement circuit diagrams.
2. The input signal levels are the VIF IN levels noted on the measurement circuit diagrams.
3. The following table describes the input signals.
Input Signal
Waveform
Conditions
SG1
45.75 MHz
SG2
42.17 MHz
SG3
41.25 MHz
SG4
Variable frequency
45.75 MHz
87.5% Video Mod.
SG5
Ten-step wave using 3.58-MHz
subcarrier
45.75 MHz
SG6
87.5% Video Mod.
Flat field signal
4. Before starting the measurements, adjust the digital-to-analog converters in the following order.
Item
Measurement Point
Input Signal
APC DAC
13
No signal, IF.AGC.DEF = 1
Target Value
Adjust to bring the DC voltage at pin 13 as close as possible to 3.8 V.
PLL DAC
13
SG1, 93 dBµ
Adjust to bring the DC voltage at pin 13 as close as possible to 3.8 V.
Video Level DAC
45
SG6, 93 dBµ
Adjust to bring the output level at pin 45 as close as possible to 2.0 Vp-p.
No. 5845-13/35
LA76075
Symbol
Measurement
Point
Input
Signal
VAFTn
13
No
signal
Set IF.AGC.DEF to “1” and measure the DC voltage at pin 13.
See Section 4 for the
adjustment value.
VOn
45
No
signal
Set IF.AGC.DEF to “1” and measure the DC voltage at pin 45.
See Section 4 for the
adjustment value.
fPU, fPL
45
Connect an oscilloscope to pin 45, apply a frequency higher
than 45.75 MHz to SG4, and unlock the phase-locked loop to
produce beats. Gradually lower the frequency until the PLL
SG4 locks and calculate the difference with 45.75 MHz. Repeat the See Section 4 for the
93 dBµ procedure from the opposite direction, lowering the frequency adjustment value.
until the PLL unlocks, raising it, and then calculating the
difference between the frequency at which the PLL locks and
45.75 MHz.
Maximum RF AGC
voltage
VRFH
6
SG1 Set the RF AGC DAC to 0 and measure the DC voltage at pin See Section 4 for the
91 dBµ 6.
adjustment value.
Minimum RF AGC
voltage
VRFL
6
SG1 Set the RF AGC DAC to 63 and measure the DC voltage at See Section 4 for the
91 dBµ pin 6.
adjustment value.
RF AGC Delay Pt
(@DAC = 0)
RFAGC0
6
SG1
Set the RF AGC DAC to 0 and note the point at which the DC See Section 4 for the
voltage at pin 6 is closest to 3.8 V.
adjustment value.
RF AGC Delay Pt
(@DAC = 63)
RFAGC63
6
SG1
Set the RF AGC DAC to 63 and note the point at which the See Section 4 for the
DC voltage at pin 6 is closest to 3.8 V.
adjustment value.
Maximum AFT output
voltage
VAFTH
13
SG4 Apply a 44.75MHz signal to SG4 0 and measure the DC See Section 4 for the
93 dBµ voltage at pin 13.
adjustment value.
Minimum AFT output
voltage
VAFTL
13
SG4 Apply a 46.75MHz signal to SG4 0 and measure the DC See Section 4 for the
93 dBµ voltage at pin 13.
adjustment value.
AFT sensitivity
VAFTS
13
Vary the SG4 frequency and determine the frequency
SG4
See Section 4 for the
differential ∆f required to change the DC voltage at pin 13
93 dBµ
adjustment value.
from 2.5 V to 5.0 V. VAFTS = 2500/∆f [mV/kHz]
VO
45
SG6 Connect an oscilloscope to pin 45 and measure the peak-to- See Section 4 for the
93 dBµ peak amplitude.
adjustment value.
VOtip
45
SG1
Measure the DC voltage at pin 45.
93 dBµ
Input sensitivity
Vi
45
Video/sync ratio
V/S
45
Connect an oscilloscope to pin 45, measure the peak-to-peak
SG6
See Section 4 for the
amplitudes of the SYNC waveform (Vs) and the brightness
93 dBµ
adjustment value.
signal (Vy), and determine the ratio Vy/Vs.
Differential gain
DG
45
SG5
Measure the pin 45 output with a vectorscope.
93 dBµ
See Section 4 for the
adjustment value.
Differential phase
DP
45
SG5
Measure the pin 45 output with a vectorscope.
93 dBµ
See Section 4 for the
adjustment value.
45
Pass the pin 45 noise output through a band pass filter
SG1 covering 10 kHz to 4 MHz, measure the level (Vsn) with an See Section 4 for the
93 dBµ RMS voltmeter, and substitute in the following formula.
adjustment value.
S/N = 20 log (1.43/Vsn)
45
Apply a 93dBµ signal to SG1 and measure the DC voltage
(V12) at pin 12. Mix the following signals and apply them to
VIF IN: SG1 = 87 dBµ, SG2 = 82 dBµ, and SG3 = 62 dBµ. See Section 4 for the
Apply the V12 level from an external power supply to pin 12. adjustment value.
Measure the difference between the 3.58MHz and 920kHz
components form pin 45 with a spectrum analyzer.
Item
Measurement Procedure
Bus Condition
[VIF Block]
AFT output voltage with
no signal
Video output voltage with
no signal
APC pull-in range (U), (L)
Video output level
Sync tip level
Video signal-to-noise
ratio
920-kHz beat level
S/N
I920
SG6
SG1
SG2
SG3
See Section 4 for the
adjustment value.
Connect an oscilloscope to pin 45 and measure the peak-toSee Section 4 for the
peak amplitude. Gradually lower the input level and note the
adjustment value.
level at which the video output amplitude (VO) is –3 dB.
No. 5845-14/35
LA76075
SIF (FM) Block Input Signals and Measurement Conditions
Unless otherwise specified for the items, apply the following conditions.
1.Use the following bus control condition: IF.AGC.DEF = “1.”
2. SW:IF1 = “ON”
3. Apply the input signal to pin 49. Use a carrier frequency of 4.5 MHz.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
SOADJ
7
Adjust the DAC FM.LEVEL to bring the 400 Hz
90 dBµ,
component of the pin 7 FM wave detection output as
fm = 400 Hz,
close as possible to 474 mVrms. Measure SV1, the
FM = ±25 kHz
output level (mVrms).
FM limiting sensitivity
SLS
7
Determine the input level (dBµ) at which the 400 Hz
fm = 400 Hz,
FM.LEVEL = adjusted
component of the pin 7 FM wave detection output is -3
FM = ±25 kHz
value
dB relative to SV1.
FM f characteristic
(fm = 50 Hz)
SF50
7
Set SW:IF1 to “OFF.” Measure SV2, the output level
90 dBµ,
(mVrms) for the pin 7 FM wave detection output, and FM.LEVEL = adjusted
fm = 50 Hz,
substitute in the following formula.
value
FM = ±25 kHz
SF50 = 20 × LOG(SV1/SV2) [dB]
FM f characteristic
(fm = 100 Hz)
SF100K
7
Set SW:IF1 to “OFF.” Measure SV3, the output level
90 dBµ,
(mVrms) for the pin 7 FM wave detection output, and FM.LEVEL = adjusted
fm = 100 Hz,
substitute in the following formula.
value
FM = ±25 kHz
SF100K = 20 × LOG(SV1/SV2) [dB]
FM total harmonic
distortion
STHD
7
90 dBµ,
Determine the total harmonic distortion for the 400-Hz FM.LEVEL = adjusted
fm = 400 Hz,
component of the pin 7 FM wave detection output.
value
FM = ±25 kHz
AM rejection
SAMR
7
90 dBµ,
fm = 400 Hz,
AM = 30%
Measure SV4, the 400 Hz component (mVrms) of the
pin 7 FM wave detection output, and substitute in the FM.LEVEL = adjusted
following formula.
value
SAMR = 20 × LOG(SV1/SV4) [dB]
SSN
7
90 dBµ,
CW
Measure SV5, the noise level (mVrms) at pin 7, and
FM.LEVEL = adjusted
substitute in the following formula.
value
SSN = 20 × LOG(SV1/SV5) [dB]
FM output level
SIF signal-to-noise ratio
No. 5845-15/35
LA76075
Audio Block Input Signals and Measurement Conditions
1. Input the left channel signal to pin 1, and input 51 IN and right channel signals to pin 47 and measured at pin 47.
2. Use the following bus control condition: VOL.FIL.DEF = “0.”
Item
Symbol
Measurement
Point
Input
Signal
Maximum gain
AGMAX
47, 51
1 KHz, CW
400 mVrms
Measure V1, the 1 kHz component (mVrms) at the
VOLUME : 111111
output pin, and substitute in the following formula.
AUDIO.MUTE : 0
AGMAX = 20 × LOG(V1/400) [dB]
Variable range
ARANGE
47, 51
1 KHz, CW
400 mVrms
Measure V2, the 1 kHz component (mVrms) at the
VOLUME : 000000
output pin, and substitute in the following formula.
AUDIO.MUTE : 0
AGMAX = 20 × LOG(V1/V2) [dB]
ABAR
47, 51
1 KHz, CW
400 mVrms
Compute the ratio of the left channel output to the right VOLUME : 111111
channel output.
AUDIO.MUTE : 0
AF
47, 51
20 KHz, CW
400 mVrms
Measure V3, the 20 kHz component (mV{rms}) at the
VOLUME : 111111
output pin, and substitute in the following formula.
AUDIO.MUTE : 0
AF = 20 × LOG(V3/V1) [dB]
AMUTE
47, 51
20 KHz, CW
400 mVrms
Set AUDIO.MUTE to “1,” measure V4, the 20 kHz
component at the output pin, and substitute in the VOLUME : 111111
following formula.
AUDIO.MUTE : 1
AMUTE = 20 × LOG(V3/V4) [dB]
ACT
47, 51
20 KHz, CW
400 mVrms
Input the left signal only and compute the ratio of the VOLUME : 111111
left channel output to the right channel output.
AUDIO.MUTE : 0
ATHD
47, 51
1 KHz, CW
400 mVrms
Determine the total harmonic distortion in the 1 kHz VOLUME : 111111
AUDIO.MUTE : 0
component at the output pin.
ASN
47, 51
No signal
Measure SV5, the noise level (mVrms) at the output
VOLUME : 111111
pin, and substitute in the following formula.
AUDIO.MUTE : 0
ASN = 20 × LOG(V1/V5) [dB]
Left/right balance
f characteristic
Muting
Left/right crosstalk
Total harmonic distortion
S/N
Measurement Procedure
Bus Condition
No. 5845-16/35
LA76075
Chroma Block Input Signals and Measurement Conditions
Unless otherwise specified for the items, apply the following conditions.
1. VIF and SIF blocks: No signals
2. Deflection block: Supply a composite horizontal and vertical synchronization signal and make sure that the deflection
block is locked onto that signal. (For details, see the section “Input Signals and Measurement Conditions.”)
3. Bus control conditions: Adjust the digital-to-analog converter to produce the best color (RGB) equality in the Y
signal levels from pins 28 (RED OUT), 29 (GRN OUT), and 30 (BLU OUT). Set Gamma Def to “1” (defeat). Unless
otherwise specified, use the initial values for all other settings.
4. Adjust the impedance (Z) of the crystal resonator, series capacitor, and resistor to the following value.
Z = 0deg @ 3.579545MHz ± 10Hz -40 ± 1deg @ 3.579345MHz
5. Y input: Unless otherwise specified, use the 0 IRE signal. (A synchronization signal is also necessary.)
6. C input: Connect this to pin 40 (CIN).
7. Calculate the demodulation angles with the following formulas.
R-Y axis = tan–1 (B(0)/B(270)) + 270°
B-Y axis = tan–1 (R(180)/R(90)) + 90°
G-Y axis = tan–1 (G(270)/G(180)) + 180°
8. Calculate the AF angle with the following formula, where BR is the B-Y/R-Y demodulation output ratio and θ is
ANGBR, the B-Y/R-Y demodulation angle.
AFXXX = tan–1
R–Y/B–Y x BR–cosθ
——————————
sinθ
No. 5845-17/35
LA76075
9. Chroma input signals
C-1
77 IRE (L-77)
C-2
C-3
C-4
C-5
No. 5845-18/35
LA76075
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bout
C-1
0 dB
+6 dB
Measure the outputs for chroma inputs of 0 dB and +6
dB and substitute in the following formula.
ACCM1 = 20log
(+6 dBdata/0 dBdata)
C-1
–14 dB
Measure the outputs for chroma inputs of 0 dB and -14
dB and substitute in the following formula.
ACCM1 = 20log
(–14 dBdata/0 dBdata)
Bus Condition
[Chroma Block]
ACC amplitude
characteristic 1
ACCM1
ACC amplitude
characteristic 2
ACCM2
30
Bout
30
YIN : L77
Measure V1, the Y output level.
C-1 : No signal
B-Y/Y amplitude ratio
CLRBY
C-2
Next supply the CIN signal (with only the
synchronization signal for YIN), measure V2, the
output level, and substitute in the following formula.
CLRBY = 100 × (V2/V1) + 15%
30
Color control
characteristic 1
CLRMN
30
C-3
Measure V1, the output amplitude (Vp-p) for the
maximum color control setting, and V2, the output
amplitude (Vp-p) for the medium one, and substitute in
the following formula.
CLRMN = V1/V2
Color control
characteristic 2
CLRMM
30
C-3
Measure V3, the output amplitude (Vp-p) for minimum
color control setting, and substitute in the following Color.0000000
formula.
(MIN)
CLRMN = 20 log (V1–V3)
Color.1111111
(MAX)
Color.1000000
(NOM)
Color control sensitivity
CLRSE
30
C-3
Measure V4, the output amplitude (V{p-p}) for a color
control setting of 90, and V5, the output amplitude (VpColor.1011010
p) for one of 38, and substitute in the following
Color.0100110
formula.
CLRSM = 100 × (V4–V5) / (V2 × 52)
Tint center
TINCEN
30
C-1
Measure the output waveform and calculate the B-Y
TINT : 1000000
angle.
Tint control maximum
TINMAX
30
C-1
Measure the output waveform, calculate the B-Y
angle, and substitute in the following formula.
TINT : 1111111
TINMAX = B-Y angle - TINCEN
Tint control minimum
TINMIN
30
C-1
Measure the output waveform, calculate the B-Y
angle, and substitute in the following formula.
TINT : 0000000
TINMIN = B-Y angle - TINCEN
Tint control sensitivity
TINSE
30
C-1
Measure A1, the angle for a tint control setting of 85,
and A2, the angle for one of 42, and substitute in the TINT : 1010101
following formula.
TINT : 0101010
TINSE = (A1–A2)/43
29
Demodulator output RY/B-Y ratio
RB
28
30
Demodulator output GY/B-Y ratio
GB
29
Supply the L77 signal to the YIN pin and adjust the red
and blue drive digital-to-analog converters until the Y
output levels at pins 28 (RED OUT) and 30 (BLU OUT)
are closest to that at pin 29 (GRN OUT).
YIN : L77
C-1 : No signal 1. After the above adjustment, supply 0 RE to the YIN
pin and C-3 to the CIN pin, measure Vb, the BOUT
YIN : 0RE
output amplitude (Vp-p), and Vr, the ROUT output
C-3
amplitude (Vp-p), and substitute in the following
formula.
RB = Vr/Vb
C-3
Measure Vg, the GOUT output amplitude (V{p-p}), and
substitute in the following formula.
GB = Vg/Vb
Use the adjusted red and blue drive values from the
RB determination above.
Color : 1000000
B Drive
R Drive
Adjusted red and blue
drive values.
Color : 1000000
B Drive
Use adjusted red and blue
drive values from the RB
determination above.
Continued on next page.
No. 5845-19/35
LA76075
Continued from preceding page.
Item
Demodulator angle B-Y/
R-Y
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
C-1
Measure the BOUT and ROUT output levels, calculate
the B-Y and R-Y angles, and substitute in the following
formula.
ANGBR = R-Y angle - B-Y angle
30
ANGBR
28
Bus Condition
ANGBG
29
C-1
Measure the GOUT output level, calculate the B-Y and
R-Y angles, and substitute in the following formula.
ANGBG = G-Y angle - B-Y angle
KILL
30
C-3
Gradually lower the input signal level and measure the
input level at which the output level falls below 150
mVp-p
Chroma VCO free run
frequency
CVCOF
42
CIN
No signal
Measure the oscillation frequency f and substitute in
the following formula.
CVCOF = f – 357945 (Hz)
Chroma pull-in range (+)
PULIN+
30
C-1
Gradually lower the input signal subcarrier frequency
from 3.57545 MHz + 1000 Hz and measure the
frequency at which the output waveform locks.
Chroma pull-in range (–)
PULIN–
30
C-1
Gradually raise the input signal subcarrier frequency
from 3.57545 MHz - 1000 Hz and measure the
frequency at which the output waveform locks.
C-4
Set AutoFlesh to “0,” measure the levels at the 73°
portions of the BOUT and ROUT output waveforms,
and calculate the angle AF073A. Set AutoFlesh to “1,” AutoFlesh : 0
repeat the procedure to determine AF073B, and AutoFlesh : 1
substitute in the following formula.
AF073 = AF073B – AF073A
C-4
Set AutoFlesh to “0,” measure the levels at the 118°
portions of the BOUT and ROUT output waveforms,
and calculate the angle AF118A. Set AutoFlesh to “1,” AutoFlesh : 0
repeat the procedure to determine AF118B, and AutoFlesh : 1
substitute in the following formula.
AF118 = AF118B – AF118A
C-4
Set AutoFlesh to “0,” measure the levels at the 163°
portions of the BOUT and ROUT output waveforms,
and calculate the angle AF163A. Set AutoFlesh to “1,” AutoFlesh : 0
repeat the procedure to determine AF163B, and AutoFlesh : 1
substitute in the following formula.
AF163 = AF163B – AF163A
C-5
Measure V1, the output amplitude (Vp-p) for an input
signal burst level of 40 IRE and a chroma level of 8
IRE, and V2, the same for a burst level of 40 IRE and
OverLoad : 1
a chroma level of 40 IRE, and substitute in the
following formula.
OVL1 = V2/V1
C-5
Measure V3, the output amplitude (Vp-p) for an input
signal burst level of 40 IRE and a chroma level of 80
OverLoad : 1
IRE, and substitute in the following formula.
OVL2 = V3/V1
Demodulator angle G-Y/
B-Y
Killer operation point
30
Auto Flesh characteristic
73°
AF073
28
30
Auto Flesh characteristic
118°
AF118
28
30
Auto Flesh characteristic
163°
AF163
28
Overload characteristic 1
Overload characteristic 2
Overload characteristic 3
fsc output amplitude
(Vp-p)
OVL1
OVL2
28
28
OVL3
28
C-5
Measure V4, the output amplitude (Vp-p) for an input
signal burst level of 20 IRE and a chroma level of 80
OverLoad : 1
IRE, and substitute in the following formula.
OVL3 = V4/V1
Vfsc
42
C-1
Measure the output amplitude (V{p-p}) of the 3.58-MHz
CW output at pin 42 (FSC OUT).
Continued on next page.
No. 5845-20/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Chroma BPF Block]
Peaker amplitude
characteristic 3.08 MHz
CPE308
30
C-3
Measure V0, the output amplitude (Vp-p). Measure V1,
the output amplitude (Vp-p) for an input chroma (CW)
frequency of 3.08 MHz, and substitute in the following CHR.BPF : 1
formula.
CPE308 = 20log(V1/V0)
Peaker amplitude
characteristic 3.88 MHz /
3.28 MHz
CPE
30
C-3
Measure V2, the output amplitude (Vp-p) for an input
chroma (CW) frequency of 3.28 MHz, and V3, the
same for 3.88 MHz, and substitute in the following CHR.BPF : 1
formula.
CPE = 20log(V3/V2)
Peaker amplitude
characteristic 4.08 MHz /
3.08 MHz
CPE05
30
C-3
Measure V4, the output amplitude (Vp-p) for an input
chroma (CW) frequency of 4.08 MHz, and substitute in
CHR.BPF : 1
the following formula.
CPE05 = 20log(V4/V1)
C-3
Measure V5, the output amplitude (Vp-p). Measure V6,
the output amplitude (Vp-p) for an input chroma (CW)
frequency of 3.08 MHz, and substitute in the following CHR.BPF : 0
formula.
CBE308 = 20log(V6/V5)
Band pass amplitude
characteristic 3.08 MHz
CBE308
30
Band pass amplitude
characteristic 3.88 MHz /
3.28 MHz
CBE
30
C-3
Measure V7, the output amplitude (Vp-p) for an input
chroma (CW) frequency of 3.28 MHz, and V8, the
same for 3.88 MHz, and substitute in the following CHR.BPF : 0
formula.
CBE = 20log(V8/V7)
Band pass amplitude
characteristic 4.08 MHz /
3.08 MHz
CBE05
30
C-3
Measure V9, the output amplitude (Vp-p) for an input
chroma (CW) frequency of 4.08 MHz, and substitute in
CHR.BPF : 0
the following formula.
CBE05 = 20log(V9/V6)
Continued on next page.
No. 5845-21/35
LA76075
Continued from preceding page.
Symbol
Measurement
Point
Input
Signal
Overall video gain
PIX127
30
L-50
Measure CNTHB, the 50 IRE amplitude (Vp-p) of the
output signal, and substitute in the following formula.
Pix : 1111111
PIX127 = 20log(CNTHB/0.357)
Contrast adjustment
characteristic
(Normal/max)
PIX63
30
L-50
Measure CNTCB, the 50 IRE amplitude (Vp-p) of the
output signal, and substitute in the following formula.
Pix : 0111111
PIX63 = 20log(CNTCB/0.357)
Contrast adjustment
characteristic (Min/max)
PIX0
30
L-50
Measure CNTCB, the 50 IRE amplitude (Vp-p) of the
output signal, and substitute in the following formula.
Pix : 0000000
PIX = 20log(CNTLB/0.357)
L-CW
Measure PEAKDC, the CW output signal amplitude
FO Select 01
(Vp-p) for an input signal with CW = 100 kHz.
Item
Measurement Procedure
Bus Condition
[Video Block]
Video frequency
characteristic
f0 = 1(Sharp0)
Yf02
30
Measure F02, the CW output signal amplitude (Vp-p) FO Select : 10
for an input signal with CW = 8 MHz.
Sharpness : 01111
f0 = 2(Sharp15)
Yf02 = 20log(F00/PEAKDC)
Chroma trapping
f0 = 0(Sharp0)
Ctrap
30
L-CW
Measure F00, the CW output signal amplitude (Vp-p) FO Select : 00
for an input signal with CW = 3.58 MHz.
Sharpness : 00000
Ctrap = 20log(F00/PEAKDC)
DC propagation
ClampG
Y delay f0 = 1
YDLY
L-0
Measure BRTPL, the 0 IRE DC level (V) of the output Brightness : 0000000
signal.
Pix : 111111
L-100
Measure DRVPH, the 0 IRE DC level (V) of the output
signal, and DRVH, the 100 IRE output signal
Brightness : 0000000
amplitude (Vp-p), and substitute in the following
Pix : 111111
formula.
ClampG = 100 × (1 + (DRVPH-BRTPL)/DRIVH)
L-50
Measure the time lag (delay) between the input signal
and the output signal for the rising edge of the 50 IRE
amplitude.
30
30
Measure BKST1, the 0 IRE DC level (V) at point A of
the output signal with the black stretching function off .
Maximum black
stretching gain
BKSTmax
30
L-BK
Measure BKST2, the 0 IRE DC level (V) at point A of
the output signal with the black stretching function on. Blk Str DEF : 0
BKS Tmax = 2 × 50 × (BKST1-BKST2)/CNTHB
Measure BKST3, the 40 IRE DC level (V) of the output
Blk Str DEF : 0
signal with the black stretching function on.
Black stretching
BKSTTH∆
threshold (40 IRE ∆black)
30
L-40
Measure BKST4, the 0 IRE DC level (V) of the output
signal with the black stretching function off.
BKSTTH∆ = 50 × (BKST4-BKST3)/CNTHB
Sharpness (peaking)
variable characteristic
Sharp16
(normal)
(max) Sharp31
L-CW
Measure F00S16, the CW output signal amplitude (Vp- F0 Select : 00
p) for an input signal with CW = 2.2 MHz.
Sharpness : 10000
Sharp16 = 20log(F00S16/PEAKDC)
30
L-CW
Measure F00S31, the CW output signal amplitude (VpSharpness : 11111
p) for an input signal with CW = 2.2 MHz.
Sharp31 = 20log(F00S16/PEAKDC)
(min)
L-CW
Sharp0
Measure F00S0, the CW output signal amplitude (VpSharpness : 00000
p) for an input signal with CW = 2.2 MHz.
Sharp0 = 20log(F00S0/PEAKDC)
Coring characteristic
Coring
30
L-CW
Measure the CW output signal amplitude (Vp-p) for an F0 Select : 01
input signal with CW = 2.7 MHz twice with coring off Sharpness : 11111
Coring : off, On
(A) and then on (B).
Coring = 20log(A/B)
Horizontal/vertical
blanking output level
RGBBLK
30
L-100
Measure RGBBLK, the DC level (V) for an output signal
blanking period.
Continued on next page.
No. 5845-22/35
LA76075
Video Block Input Signals and Measurement Conditions
1. CIN input signal: Chroma burst signal, 40 IRE
2. YIN input signal: 100 IRE, 714 mV
3. Bus control register bits: initial test state
0 IRE signal (L-0): NTSC standard synchronization signal
XIRE signal (L-X)
XIRE (X = 0 to 100)
CW signal (L-CW)
20 IRE CW signal
Black stretch 0 IRE signal (L-BK)
5 µs
(point A)
RIN, GIN, BIN input signals
RGB input signal 1 [0-1]
20 µs each
RGB input signal 2 [0-2]
No. 5845-23/35
LA76075
Item
Symbol
Measurement
Point
Input
Signal
[On Screen Display
(OSD) Block]
Measurement Procedure
Bus Condition
For the following measurements, set both the pix and Pix : 0111111
brightness bus bits to 63.
Brightness : 0111111
OSD Fast Switch
threshold
FSTH
Red RGB output level
ROSDH
30
28
L-0
0-2
Gradually raise the voltage at pin 36 from 0 V and note
the voltage at which the output signal switches to the Apply 0-2 to pin 35.
OSD signal.
L-50
Measure CNTCR, the 50 IRE amplitude (Vp-p) of the
output signal.
L-0
0-2
Measure OSDHR, the OSD output amplitude (Vp-p).
pin 36 : 3.5 V
Apply 0-2 to pin 33.
ROSDH = 50 × (OSDHR/CNTCR)
Green RGB output level
GOSDH
29
L-50
Measure CNTCG, the 50 IRE amplitude (Vp-p) of the
output signal.
L-0
0-2
Measure OSDHG, the OSD output amplitude (Vp-p).
pin 36 : 3.5 V
Apply 0-2 to pin 33.
GOSDH = 50 × (OSDHG/CNTCG)
Blue RGB output level
BOSDH
30
L-50
Measure CNTCB, the 50 IRE amplitude (Vp-p) of the
output signal.
L-0
0-2
Measure OSDHB, the OSD output amplitude (Vp-p).
pin 36 : 3.5 V
Apply 0-2 to pin 33.
BOSDH = 50 × (OSDHB/CNTCB)
Analog OSD Red output
level
28
L-0
0-1
Measure REGLR, the output amplitude (Vp-p) at point
A of the output signal, and RGBHR, the same at point pin 36 : 3.5 V
B. Note: Point A corresponds to the 0.35-V point in the Apply 0-1 to pin 33.
input signal 0-1 [?]; point B, to the 0.7-V point.
Gain match
RRGB
RRGB = RGBLR/CNTCR
Linearity
LRRGB
LRRGB = 100 × (RGBLR/RGBHR)
Analog OSD Green
output level
29
L-0
0-1
Measure RGBLG, the output amplitude (Vp-p) at point
A of the output signal, and RGBHG, the same at point pin 36 : 3.5 V
B. Note: Point A corresponds to the 0.35-V point in the Apply 0-1 to pin 34.
input signal 0-1 [?]; point B, to the 0.7-V point.
Gain match
GRGB
GRGB = RGBLR/CNTCG
Linearity
LGRGB
LGRGB = 100 × (RGBLG/RGBHG)
Analog OSD Blue output
level
30
L-0
0-1
Measure RGBLB, the output amplitude (Vp-p) at point
A of the output signal, and RGBHB, the same at point pin 36 : 3.5 V
B. Note: Point A corresponds to the 0.35-V point in the Apply 0-1 to pin 35.
input signal 0-1 [?]; point B, to the 0.7-V point.
Gain match
BRGB
BRGB = RGBLB/CNTCG
Linearity
LBRGB
LBRGB = 100 × (RGBLB/RGBHB)
[RGB Output (Cutoff,
Drive) Block]
For the following measurements, set the pix bus bits to
Pix : 1111111
127.
28
Brightness control
(normal)
BRT63
29
30
(max)
BRT0
BRT63 = (BRTPCR + BRTPCG + BRTPCB)/3
Measure BRTPHB, the 0 IRE DC output level (V) at
Brightness : 11111111
pin 30 (BLU OUT).
BRT127
30
(min)
L-0
Measure BRTPCR, BRTPCG, and BRTPCB, the 0 IRE
DC output levels (V) at pins 28 (RED OUT), 29 (GRN Brightness : 01111111
OUT), and 30 (BLU OUT).
BRT127 = 50 × (BRTPHB-BRTPCB)/CNTHB
Measure BRTPLB, the 0 IRE DC output level (V) at pin
Brightness : 00000000
30 (BLU OUT).
BRT0 = 50 × (BRTPLB-BRTPCB)/CNTHB
Continued on next page.
No. 5845-24/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
[RGB Output (Cutoff,
Drive) Block]
Bias (cutoff) control
(min)
Bus Condition
For the following measurements, set the pix bus bits to
Pix : 1111111
127.
L-50
Vbias0
Measure BAS80* (where * = R, G, B), the 0 IRE DC
Red/Green/Blue Bias :
output levels (V) at pins 28 (RED OUT), 29 (GRN
1010000
OUT), and 30 (BLU OUT).
28
Vbiassns
Measure Vbias0* (where * = R, G, B), the 0 IRE DC
output levels (V) at pins 28 (RED OUT), 29 (GRN Sub-Brightness : 0000000
OUT), and 30 (BLU OUT).
Measure Vbias128* (where * = R, G, B), the 0 IRE DC Sub-Brightness : 1111111
output levels (V) at pins 28 (RED OUT), 29 (GRN Red/Green/Blue Bias :
OUT), and 30 (BLU OUT).
1111111
(max) Vbias128
Bias (cutoff) control
resolution
Measurement Procedure
29
Measure BAS48* (where * = R, G, B), the 0 IRE DC
Red/Green/Blue Bias :
output levels (V) at pins 28 (RED OUT), 29 (GRN
0110000
OUT), and 30 (BLU OUT).
30
Vbiassns* = (BAS80)* – BAS48*)/32
Sub bias control
resolution
L-50
Vsbiassns
Measure SBTPM* (where* = R, G, B), the 0 IRE DC Red/Green/Blue Bias :
output levels (V) at pins 28 (RED OUT), 29 (GRN 0101010
OUT), and 30 (BLU OUT).
Pix : 011111
Vbiassns* = (BRTPC* – SBTPM8*)
Drive adjustment
maximum output
RGBout127
28
29
Drive adjustment output
attenuation
Measure DRVH* (where * = R, G, B), the 100 IRE DC
output amplitude (Vp-p) at pins 28 (RED OUT), 29 Brightness : 0000000
(GRN OUT), and 30 (BLU OUT).
RGBout0
L-100
30
Measure DRVL* (where * = R, B), the 100 IRE DC
Brightness : 0000000
output amplitude (Vp-p) at pins 28 (RED OUT), 29
Red/Blue Deive : 0000000
(GRN OUT), and 30 (BLU OUT).
RGBout0* = 20log(DRVH*/DRVL*)
For the following measurements, set both the pix and Pix : 0111111
brightness bus bits to 63.
Brightness : 01111111
Gamma characteristic
Rϒ
28
Gϒ
29
Bϒ
30
L-100
Measure *A and *B (where * = R, G, B), the 100 IRE
DC output amplitude (Vp-p) at pins 28 (RED OUT), 29
Gamma Def : Off, On
(GRN OUT), and 30 (BLU OUT) with gamma def off
(*A) and then on (*B).
*ϒ = 100 * (*A/*B)
No. 5845-25/35
LA76075
Deflection Block Input Signals and Measurement Conditions
If nothing is specified for the items, the following conditions apply.
1. VIF and SIF blocks: No signals
2. C input: No signal
3. Y input: Supply a composite horizontal and vertical synchronization signal (40 IRE). Set other timing parameters to
conform with the FCC broadcast standard.
Note: Make sure that there are no burst or chroma signals under the pedestal level.
4. Bus control conditions: Use the initial values.
5. Use a delay of 9 µs from the rising edge in the horizontal output (pin 23) to the rising edge in the flyback pulse pin
(pin 24).
6. Connect pin 32, the vertical size compensation circuit input pin to VCC (7.6 V).
7. Connect pin 25 (X RAY), the X-ray protection circuit input pin to ground.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Deflection block]
Synchronization
separation sensitivity
Horizontal free run
frequency deviation
Horizontal pull-in range
Horizontal output pulse
width @0
Horizontal output pulse
width @1
Horizontal output pulse
saturation voltage
Ssync
38
YIN:
Composite
Gradually lower the pin 38 (YIN) synchronization
horizontal and
signal level and measure the level at which the device
vertical
loses synchronization.
synchronization
signal
∆fH
23
YIN: No signal
Connect a frequency counter to the pin 23 (HORIZ
OUT) output, measure the horizontal free run
frequency, and substitute in the following formula.
∆fH = the measured frequency – 15.734 kHz
38
YIN:
Composite
horizontal and
vertical
synchronization
signal
Connect the pin 38 (YIN) synchronization signal input
and pin 23 (HORIZ OUT) output to an oscilloscope,
vary the horizontal synchronization signal frequency,
and measure the pull-in range.
23
YIN:
Composite
horizontal and Measure the width of the “Low” level portion of the pin
HDUTY : 00
23 (HORIZ OUT) horizontal output pulses.
vertical
synchronization
signal
23
YIN:
Composite
horizontal and Measure the width of the “Low” level portion of the pin
HDUTY : 01
23 (HORIZ OUT) horizontal output pulses.
vertical
synchronization
signal
23
YIN:
Composite
horizontal and Measure the voltage of the “Low” level portion of the
pin 23 (HORIZ OUT) horizontal output pulses.
vertical
synchronization
signal
fH PULL
Hduty 0
Hduty 1
V Hsat
Continued on next page.
No. 5845-26/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
Measure the delay from the rising edge of the pin 23
(HORIZ OUT) horizontal output pulses to the falling
edge of the pin 38 (YIN) horizontal synchronization
signal input.
Horizontal output pulse
phase
23
HPHCEN
38
YIN:
Composite
horizontal and
vertical
synchronization
signal
Vary HPHASE over the range 0 to 31, measure the
delays from the rising edge of the pin 23 (HORIZ OUT)
horizontal output pulses to the falling edge of the pin
38 (YIN) horizontal synchronization signal input, and
calculate the differences from HPHCEN.
Horizontal position
adjustment range
Horizontal position
adjustment maximum
range
Operating voltage for Xray protection circuit
23
HPHrange
38
23
HPHstep
38
23
VXRAY
25
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
HPHASE : 00000
HPHASE : 11111
Vary HPHASE over the range 0 to 31, measure the
delays from the rising edge of the pin 23 (HORIZ OUT)
horizontal output pulses to the falling edge of the pin
38 (YIN) horizontal synchronization signal input,
calculate the change at each step, and take the
maximum.
HPHASE : 00000
HPHASE : 11111
Connect a DC power supply to pin 25 (X RAY),
gradually raise the voltage from 0 V, and measure the
DC voltages at the point where the horizontal output
pulses from pin 23 (HORIZ OUT) stop.
Continued on next page.
No. 5845-27/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Vertical screen size adjustment]
Vertical ramp output
amplitude @64
Vertical ramp output
amplitude @0
Vertical ramp output
amplitude @127
Vsize64
Vsize0
Vsize127
17
17
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
17
YIN:
Composite
horizontal and
vertical
synchronization
signal
17
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 and 262, and substitute in the
following formula.
Vsize64 = Vline262 – Vline22
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 and 262, and substitute in the
following formula.
Vsize0 = Vline262 – Vline22
VSIZE : 0000000
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 and 262, and substitute in the
following formula.
Vsize127 = Vline262 – Vline22
VSIZE : 1111111
[High-voltage dependent
vertical size
compensation]
Vertical size
compensation @0
Vsizecomp
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 and 262, and substitute in the
VCOMP : 00
following formula.
Apply 6.2 V to pin 32, repeat the measurements, and
substitute in the following two formulas.
Continued on next page.
No. 5845-28/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Vertical screen position adjustment]
Vertical ramp DC voltage
@64
Vertical ramp DC voltage
@0
Vertical ramp DC voltage
@127
Vdc64
Vdc0
Vdc127
17
17
17
Monitor the pin 17 vertical ramp output and measure
the voltage for line 142.
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 17 vertical ramp output and measure
the voltage for line 142.
YIN:
Composite
horizontal and
VDC : 0000000
vertical
synchronization
signal
Monitor the pin 17 vertical ramp output and measure
the voltage for line 142.
YIN:
Composite
horizontal and
VDC : 1111111
vertical
synchronization
signal
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 (Va), 142 (Vb), and 262 (Vc), and
substitute in the following formula.
Vlin16 = (Vb – Va)/(Vc – Vb)
Vertical linearity @16
Vlin16
17
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 (Va), 142 (Vb), and 262 (Vc), and
substitute in the following formula.
Vlin16 = (Vb – Va)/(Vc – Vb)
Vertical linearity
Vlin0
17
YIN:
Composite
horizontal and
vertical
synchronization
signal
VLIN : 00000
Continued on next page.
No. 5845-29/35
LA76075
Continued from preceding page.
Item
Vertical linearity @31
Vertical S-correction
@16
Vertical S-correction @0
Vertical S-correction
@31
Symbol
Vlin31
VScor16
VScor0
VScor31
Measurement
Point
17
17
17
17
Input
Signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
Measurement Procedure
Bus Condition
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 22 (Va), 142 (Vb), and 262 (Vc), and
substitute in the following formula.
Vlin31 = (Vb – Va)/(Vc – Vb)
VLIN : 11111
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 32 (Va), 52 (Vb), 132 (Vc), 152 (Vd),
232 (Ve), and 252 (Vf), and substitute in the following
formula.
VScor16 = 0.5 ((Vb – Va) + (Vf – Ve))/(Vd – Vc)
VS : 10000
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 32 (Va), 52 (Vb), 132 (Vc), 152 (Vd),
232 (Ve), and 252 (Vf), and substitute in the following
formula.
VScor0 = 0.5 ((Vb – Va) + (Vf – Ve))/(Vd – Vc)
Monitor the pin 17 vertical ramp output, measure the
voltages for lines 32 (Va), 52 (Vb), 132 (Vc), 152 (Vd),
232 (Ve), and 252 (Vf), and substitute in the following
formula.
VScor31 = 0.5 ((Vb – Va) + (Vf – Ve))/(Vd – Vc)
VS : 11111
Continued on next page.
No. 5845-30/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Horizontal size adjustment]
Monitor the pin 18 East/West (parabola wave) output
and measure the voltage for line 142.
East/West DC voltage
@32
EWdc32
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 18 East/West (parabola wave) output
and measure the voltage for line 142.
East/West DC voltage
@0
EWdc0
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
EWDC : 000000
Monitor the pin 18 East/West (parabola wave) output
and measure the voltage for line 142.
East/West DC voltage
@63
EWdc63
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
EWDC : 111111
[High-voltage dependent
horizontal size
compensation]
Horizontal size
compensation @0
Hsizecomp
Monitor the pin 18 East/West output and measure the
voltage (Va) for line 142.
Apply 6.2 V to pin 32, measure the voltage for line 142
HCOMP : 000
again (Vb), and substitute in the following two
formulas.
Hsizecomp = Va – Vb
Continued on next page.
No. 5845-31/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Pincushion distortion compensation]
East/West parabola
amplitude @32
East/West parabola
amplitude @0
East/West parabola
amplitude @63
EWamp32
EWamp0
EWamp63
18
18
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 142 (Vb),
and substitute in the following formula.
EWamp32 = Vb – Va
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 142 (Vb),
and substitute in the following formula.
EWamp0 = Vb – Va
EWAMP000000
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 142 (Vb),
and substitute in the following formula.
EWamp63 = Vb – Va
EWAMP111111
Continued on next page.
No. 5845-32/35
LA76075
Continued from preceding page.
Item
Symbol
Measurement
Point
Input
Signal
Measurement Procedure
Bus Condition
[Keystone distortion compensation]
East/West parabola tilt
@32
East/West parabola tilt
@0
East/West parabola tilt
@63
EWtilt32
EWtilt0
EWtilt63
18
18
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 262 (Vb),
and substitute in the following formula.
EWtilt32 = Va – Vb
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 262 (Vb),
and substitute in the following formula.
EWtilt0 = Va – Vb
WTILT : 000000
Monitor the pin 18 East/West (parabola wave) output,
measure the voltages for lines 22 (Va) and 262 (Vb),
and substitute in the following formula.
EWtilt63 = Va – Vb
WTILT : 111111
[Corner distortion compensation]
East/West parabola
corner top
East/West parabola
corner bottom
EWcortop
EWcorbot
18
YIN:
Composite
horizontal and
vertical
synchronization
signal
YIN:
Composite
horizontal and
vertical
synchronization
signal
Monitor the pin 18 East/West (parabola wave) output,
measure the voltage for line 22 under the conditions:
CORTOP = 1111 (Va) and CORTOP = 0000 (Vb), and
substitute in the following formula.
EWcortop = Va – Vb
CORTOP : 1111-0000
Monitor the pin 18 East/West (parabola wave) output,
measure the voltage for line 262 under the conditions:
CORTOP = 1111 (Va) and CORTOP = 0000 (Vb), and
substitute in the following formula.
EWcorbot = Va – Vb
CORBOTTOM : 1111-0000
No. 5845-33/35
* For adjusting the crystal
oscillator characteristics
(Includes two monostable multivibrators)
LA76075
No. 5845-34/35
LA76075
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products (including technical data, services) described or contained
herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export license from the authorities concerned in accordance with the
above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of October, 1998. Specifications and information herein are subject
to change without notice.
PS No. 5845-35/35