SONY CXA3186N

CXA3185/3186N
All Band TV Tuner IC with On-chip PLL
Description
The CXA3185/3186N is a monolithic TV tuner IC
which integrates local oscillator and mixer circuits for
VHF band, local oscillator and mixer circuits for UHF
band, an IF amplifier and a tuning PLL onto a single
chip, enabling further miniaturization of the tuner.
Features
• Low noise figure
• Low power consumption (5 V, 54 mA typ.)
• On-chip tuning PLL (3-wire bus format)
• Selection of frequency steps 31.25 kHz, 50 kHz
and 62.5 kHz
• On-chip 4-output band switch
Applications
• TV tuners
• VCR tuners
• CATV tuners
Structure
Bipolar silicon monolithic IC
30 pin SSOP (Plastic)
Absolute Maximum Ratings (Ta = 25 °C)
• Supply voltage VCC1,VCC2 –0.3 to +5.5
VCC3
–0.3 to +10.0
• Storage temperature
Tstg
–55 to +150
• Allowable power dissipation
PD
880
V
V
°C
mW
(when mounted on a substrate)
Operating Conditions
• Supply voltage VCC1, VCC2
VCC3
• Operating temperature
Topr
4.75 to 5.3
4.75 to 9.45
V
V
–20 to +75
°C
Note) Electrostatic discharge strength is weak, and care should be taken in handling this IC.
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—
E97944-TE
CXA3185/3186N
Block Diagram and Pin Configuration
CL
1
DA
2
CE
3
FMT
4
BVL
5
BVH
6
Input
Buffer
Shift
Register
Divider
1/512,640,1024
REF
OSC
Phase
Detector
Band
SW
Driver
Charge
Pump
LOCK
Det
Divider
14/15bit
BU
7
USW
30
VCC3
29
REFOSC
28
CPO
27
CPE
26
LOCK
25
IF OUT
24
GND
23
VCC2
22
UOSCB2
21
UOSCE2
20
UOSCE1
19
UOSCB1
18
VOSC2
17
GND
16
VOSC1
Prescaler
1/8
VCC1
8
V.REG
Bias
IF AMP
MIXout1
Buffer
9
MIXout2 10
GND1 11
MS 12
Buffer
UHF
OSC
VHF
MIX
VHFin 13
Buffer
UHFin1 14
UHFin2 15
UHF
MIX
—2—
VHF
OSC
CXA3185/3186N
Pin Description
Pin
No.
Symbol
Pin voltage
(V)
Equivalent circuit
22
Description
VCC2
100k
5k
1
1
CL
22
—
Clock input.
—
Data input.
VCC2
100k
5k
2
2
DA
22
VCC2
150k
3
CE
1.25
Enable pin.
(when open)
3
50k
4
FMT
VCC3
30
5
BVL
20k
4
ON : Vcc3
OFF : 0
5
6
6
BVH
7
4 : Output for FM TRAP.
5 : Power supply output for
VL band.
6 : Power supply output for
VH band.
7 : Power supply output for
UHF band.
7
BU
The selected band pin goes
High.
8
VCC1
Analog circuit power supply.
9
MIXout1
10
9
Mixer outputs.
10
MIXout2
11
GND1
—
—
—3—
Analog circuit GND.
CXA3185/3186N
Pin
No.
Symbol
Pin voltage
(V)
Equivalent circuit
VCC2
12
MS
13
VHFin
120k
50k
13
14
12
14
UHFin1
15
3k
15
3k
UHFin2
18
16
VOSC1
8
16
VCC1
600
8p
50
3k
18
VOSC2
17
GND
19
UOSCB1
3k
15p
19
20
20
21
22
VCC1
UOSCE1
3k
21
UOSCE2
22
UOSCB2
3k
—4—
Description
Frequency step mode
1.5
selection. Five modes can be
(when open) selected according to the
applied voltage.
2.3
VHF input.
(VHF)
The input format is unbalanced
0
input.
(UHF)
0
(VHF)
2.3
UHF input.
(UHF)
The input method can be
0
selected from balanced input
(VHF)
or unbalanced input.
2.3
(UHF)
3.0
(VHF)
3.1
(UHF)
External resonance circuit
3.5
connection for VHF oscillator.
(VHF)
5.0
(UHF)
—
GND
3.2
(VHF)
2.9
(UHF)
—
(VHF)
2.4
(UHF)
External resonance circuit
—
connection for UHF oscillator.
(VHF)
2.4
(UHF)
3.2
(VHF)
2.9
(UHF)
CXA3185/3186N
Pin
No.
23
24
Symbol
Equivalent circuit
VCC2
GND2
—
—
VCC1
8
25
Pin voltage
Description
(V)
—
PLL circuit power supply.
—
PLL circuit GND.
IFOUT
2.3
40
IF output.
25
VCC2
22
5.0
(Lock)
40k
26
26
LOCK
0.2
(UNLock)
VCC2
27
22
CPE
LOCK detection.
High when locked, Low when
unlocked.
0.6
NPN transistor connection for
varicap diode drive.
2.0
Charge pump output.
Connect a loop filter.
4.3
Crystal connection for
reference oscillator.
—
Power supply for external
supply.
200
28
500
28
27
CPO
20k
60k
30p
29
REFOSC
30
VCC3
30p
29
—5—
CXA3185/3186N
Electrical Characteristics
Circuit Current
Item
Circuit current A
Symbol
AICCV
AICCU
Circuit current D
DICC
See the Electrical Characteristics Measurement Circuit.
(VCC=5 V, Ta=25 °C)
Measurement conditions
VCC1 current, Band switch output
open during VHF operation
VCC1 current, Band switch output
open during UHF operation
VCC2 current
Min.
Typ.
Max.
Unit
30
41
55
mA
31
42
56
mA
7
11
15
mA
Measurement conditions
VHF operation fRF = 55 MHz
VHF operation fRF = 360 MHz
UHF operation fRF = 360 MHz
UHF operation fRF = 800 MHz
VHF operation fRF = 55 MHz
VHF operation fRF = 360 MHz
UHF operation fRF = 360 MHz
UHF operation fRF = 800 MHz
VHF operation
fD = 55 MHz, fUD = ±12 MHz
VHF operation
fD = 360 MHz, fUD = ±12 MHz
UHF operation
fD = 360 MHz, fUD = ±12 MHz
UHF operation
fD = 800 MHz, fUD = ±12 MHz
50 Ω load saturation output
VHF operation fOSC = 100 MHz
∆f from 3 s to 3 min after switch ON
VHF operation fOSC = 405 MHz
∆f from 3 s to 3 min after switch ON
UHF operation fOSC = 405 MHz
∆f from 3 s to 3 min after switch ON
UHF operation fOSC = 845 MHz
∆f from 3 s to 3 min after switch ON
VHF operation fOSC = 100 MHz
∆f when VCC 5 V changes ±5 %
VHF operation fOSC = 405 MHz
∆f when VCC 5 V changes ±5 %
UHF operation fOSC = 405 MHz
∆f when VCC 5 V changes ±5 %
UHF operation fOSC = 845 MHz
∆f when VCC 5 V changes ±5 %
Min.
21
22
26
27
Typ.
24
25
29
30
12
11
8.5
9.5
Max.
27
28
32
33
15
14
12.5
13.5
Unit
dB
dB
dB
dB
dB
dB
dB
dB
97
101
dBµ
96
100
dBµ
92
96
dBµ
88
92
dBµ
+5
+10
dBm
OSC/MIX/IF Amplifier Block
Item
Symbol
Conversion gain ∗1 CG1
CG2
CG3
CG4
Noise figure ∗1, ∗2 NF1
NF2
NF3
NF4
1 % cross
CM1
modulation ∗1, ∗3
CM2
CM3
CM4
Maximum output power
Switch ON drift ∗4
Pomax
∆fsw1
∆fsw2
∆fsw3
∆fsw4
Supply voltage drift
∆fst1
∗4
∆fst2
∆fst3
∆fst4
—6—
±300
kHz
±400
kHz
±400
kHz
±500
kHz
±150
kHz
±250
kHz
±200
kHz
±250
kHz
CXA3185/3186N
∗1 Measured value for untuned inputs.
∗2 Noise figure is the direct-reading value of NF meter in DSB.
∗3 Desired signal (fD) input level is –30 dBm. Undesired signal (fUD) is 100 kHz, 30 % AM.
The measurement value is undesired signal level, it measured with a spectrum analyzer at S/I=46 dBm.
∗4 Value when the PLL is not operating.
PLL Block
Item
Symbol
CL and DA pins
“H” level input voltage VIH
“L” level input voltage VIL
“H” level input current IIH
“L” level input current IIL
CE pins
“H” level input voltage VIHE
“L” level input voltage VILE
“H” level input current IIHE
“L” level input current IILE
CPO (charge pump)
ICPO
Output current
LeakCP
Leak current
LOCK
VLOCKH
“H” output voltage
VLOCKL
“L” output voltage
REFOSC
Oscillator
FXTOSC
frequency range
CXTOSC
Input capacitance
VXTOSC
Drive level
BVL, BVH, BU (Band SW)
IBS1
Output current
VSAT1
Saturation voltage
LeakBS1
Leak current
FMT (Band SW)
Output current
Saturation voltage
Leak current
Bus timing
Data setup time
Data hold time
Enable waiting time
Enable setup time
Enable hold time
Measurement conditions
Min.
Max.
Unit
3
VCC
GND
0
–1
1.5
–0.1
–2
V
V
µA
µA
100
–30
VCC
1.5
130
–45
V
V
µA
µA
±75
30
µA
nA
VCC–0.5
0
VCC
0.5
V
V
3
12
MHz
20.5
pF
mVp-p
100
0.5
–25
200
3
mA
mV
µA
75
0.03
–7
150
0.1
mA
mV
µA
VIH = VCC
VIL = GND
3
GND
VIHE=VCC
VILE=GND
±35
When locked
When unlocked
17.5
200
When ON
When ON Sink current = 20 mA
When OFF
IBS2
When ON
VSAT2
When ON Sink current = 5 mA
LeakBS2 When OFF
tSD
tHD
tWE
tSE
tHE
Typ.
See Timing Chart on Page 15
See Timing Chart on Page 15
See Timing Chart on Page 15
See Timing Chart on Page 15
See Timing Chart on Page 15
—7—
300
600
300
300
600
±50
19
400
ns
ns
ns
ns
ns
CXA3185/3186N
Electrical Characteristics Measurement Circuit
+30V
22k
8200p
1.2k
47k
0.047µ
33p
+5V
47k
2SC2785
3.3µ
47k
1n
2.5ø2.5t
0.5p
0.5p
7p
LOCK IF OUT
1T363
3.2ø
5.5t
1n
47k
3.0ø
2.5t
1n
47k
BVL
51
BVH
0.5p
150p
1T363
51
47k
1T363
47k
XTAL
4MHz
56p 47k 56p
1T362
1n
16p
CPE
LOCK
IFOUT
22
21
20
19
18
17
16
VOSC1
CPO
23
GND
REFOSC
24
VOSC2
25
8p
UOSCB1
26
4p
UOSCE2
27
UOSCB2
28
VCC2
29
GND2
30
VCC3
8p
UOSCE1
100p
1n
1p
CL
DA
CE
FMT
BVL
BVH
BU
VCC1
MIX out1
MIX out2
GND1
MS
VHF in
UHFin1
UHFin2
CXA3185/3186N
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2k
1n
4.5t
1n
1n
1n
4.5t
CLOCK DATA ENABLE
56p
FMT
BVL
BVH
BU
100
56p
1n
VHF IN
3.3µ
1n
+5V
—8—
UHF IN
47k
CXA3185/3186N
Description of Functions
The CXA3185/3186N is a terrestrial wave broadcast tuner IC which converts frequencies to IF in order to
tune and detect only the desired reception frequency of VHF, CATV and UHF band signals.
In addition to the mixer, local oscillator and IF amplifier circuits required for frequency conversion to IF, this
IC also integrates a PLL circuit for local oscillator frequency control onto a single chip.
The functions of the various circuits are described below.
1. Mixer circuit
This circuit outputs the frequency difference between the signal input to VHFIN or UHFIN and the local
oscillation signal.
2. Local oscillator circuit
A VCO is formed by externally connecting an LC resonance circuit composed of a varicap diode and
inductance.
3. IF amplifier circuit
This circuit amplifies the mixer IF output, and consists of an amplifier stage and low impedance output
stage.
4. PLL circuit
This PLL circuit fixes the local oscillator frequency to the desired frequency. It consists of a prescaler, main
divider, reference divider, phase comparator, charge pump and reference oscillator. The control format
supports the 3-wire bus format. The following four modes can be selected according to the combination of
the frequency division values of the main and reference dividers.
Mode
A-0
A-1
A-2
A-3/4
Main divider
15 bit
14 bit
15 bit
15 bit
—9—
Reference divider
1024 fixed
512 fixed
640 fixed
512 fixed
CXA3185/3186N
Description of Analog Block Operation
(See the Electrical Characteristics Measurement Circuit.)
VHF oscillator circuit
• This circuit is a differential amplifier type oscillator circuit. Pin 18 is the output and Pin 16 is the input.
Oscillation is performed by connecting an LC resonance circuit including a varicap to Pin 18 via coupled
capacitance, inputting to Pin 16 with feedback capacitance, and applying positive feedback.
• The amplifier between Pins 16 and 18 has an extremely high gain. Therefore, care should be taken to
avoid creating parasitic capacitance, resistance or other feedback loops as this may produce abnormal
oscillation.
VHF mixer circuit
• The mixer circuit employs a double balance mixer with little local oscillation signal leakage.
The input format is base input type, with Pin 12 grounded and the RF signal input to Pin 13.
• The RF signal is inserted from the oscillator, converted to IF frequency and output from Pins 9 and 10.
• Pins 9 and 10 are open collectors, so power must be supplied externally. The electric potential of Pins 9
and 10 at this time must be DC 4.0 V or more.
UHF oscillator circuit
• This oscillator circuit is designed so that two collector ground type Colpitts oscillators perform differential
oscillation operation via an LC resonance circuit including a varicap. Connect resonance capacitance
which consists of colpitts oscillator between Pins 19 and 20, Pins 20 and 21, and Pins 21 and 22. Then
an LC resonance circuit including a varicap diode is connected between Pins 19 and 22.
UHF mixer circuit
• This circuit employs a double balance mixer like the VHF mixer circuit.
The input format is base input type, with Pins 14 and 15 as the RF input pins. The input method can be
selected from balanced input consisting of differential input to Pins 14 and 15 or unbalanced input
consisting of grounding Pin 14 via a capacitor and input to Pin 15.
• Pins 9 and 10 are the mixer outputs.
• Pins 9 and 10 are open collectors, so power must be supplied externally. The electric potential of Pins 9
and 10 at this time must be DC 4.0 V or more.
IF amplifier circuit
• The signals frequency converted by the mixer are output from Pins 9 and 10, and at the same time are
AC coupled inside the IC and input to the IF amplifier.
• Single-tuned filters are connected to Pins 9 and 10 in order to improve the interference characteristics of
the IF amplifier.
• The signal amplified by the IF amplifier is output from Pin 25.
The output impedance is approximately 75 Ω.
—10—
CXA3185/3186N
Description of PLL Block
The PLL on this IC supports the 3-wire bus control format.
The serial data is input to the DA, CL and CE pins. The data is loaded to the shift register at the clock rise,
and latched at the enable fall.
Symbol
CE
CL
DA
LOCK
3-wire bus control
Enable input
Clock input
Data input
Lock signal output
1) Mode Setting Method
The modes for each frequency step are set according to the MS pin voltage.
Mode
MS pin voltage
A-0
A-1
A-2
A-3
A-4
0 to 0.15VCC
OPEN
0.45VCC to 0.55VCC
0.65VCC to 0.75VCC
0.85VCC to VCC
Main
divider
15 bit
14 bit
15 bit
15 bit
15 bit
Reference
divider
1024
512
640
512
512
Reference
frequency∗
Frequency
step∗
3.90625 kHz
7.8125 kHz
6.25 kHz
7.8125 kHz
7.8125 kHz
31.25 kHz
62.5 kHz
50 kHz
62.5 kHz
62.5 kHz
Control
word length
Total 19 bits
Total 18 bits
Total 19 bits
Total 19 bits
Total 27 bits
∗ Frequency step is for when X’tal OSC = 4 MHz.
2) Programming
• The VCO lock frequency is obtained according to the following formula.
fosc = fref × 8 × (32 M + S)
fosc : local oscillator frequency
fref : reference frequency
8 : prescaler fixed frequency division ratio
M : main divider frequency division ratio
S : swallow counter frequency division ratio
The variable frequency division ranges of M and S are as follows, and are set as binary.
32 ≤ M ≤ 1023 (32 ≤ M ≤ 511 for A-1 mode)
0 ≤ S ≤ 31
• The PLL control data is comprised of the above frequency data and the band switch control data.
—11—
CXA3185/3186N
2-1) The CXA3185N control format is as follows.
2-1-1 : A-0/A-2/A-3 Modes (19-bit data format)
Front bit
←MSB
BU FMT BVH BVL M9 M8 M7 M6 M5
2-1-2 : A-1 Mode (18-bit data format)
Front bit
←MSB
BU FMT BVH BVL M8 M7
2-1-3 : A-4 Mode (27-bit data format)
Front bit
←MSB
BU FMT BVH BVL M9 M8 M7
X
CP T1 CD X
R1 R0
M6
M6
X
M5
M5
M4
M4
M4
M3
M3
M3
M2
M2
M2
M1
M1
M1
M0
M0
M0
S4
S4
S4
S3
S3
S3
S2
LSB→
S1 S0
S2
LSB→
S1 S0
S2
LSB→
S1 S0
∗) X: Don’t care
S0 to :
M0 to :
BVL :
BVH :
FMT :
BU
:
CP
:
T1
:
CD
:
R0, R1:
swallow counter frequency division ratio setting
main divider frequency division ratio setting
VL band switch control
VH band switch control
FM trap switch control
UHF band switch control
charge pump current switching
test mode selection
charge pump OFF
reference divider frequency division ratio setting
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(200 µA when “1”, 50 µA when “0”)
(when “1”)
(when “1”)
(See the table below.)
Reference Divider Frequency Division Ratio Table
R1
0
1
X
R0
1
1
0
Reference divider
1024
512
640
∗) X: Don’t care
—12—
CXA3185/3186N
2-2) The CXA3186N control format is as follows.
The BU and FMT data order is switched for the CXA3185N.
In this case the control format is as follows.
2-2-1 : A-0/A-2/A-3 Modes (19-bit data format)
Front bit
←MSB
FMT BU BVH BVL M9 M8 M7 M6 M5
M4
M3
M2
M1
M0
S4
S3
S2
S1
LSB→
S0
2-2-2 : A-1 Mode (18-bit data format)
Front bit
←MSB
FMT BU BVH BVL M8 M7
M6
M5
M4
M3
M2
M1
M0
S4
S3
S2
S1
LSB→
S0
2-2-3 : A-4 Mode (27-bit data format)
Front bit
←MSB
FMT BU BVH BVL M9 M8 M7
X
CP T1 CD X
R1 R0
M6
X
M5
M4
M3
M2
M1
M0
S4
S3
S2
S1
LSB→
S0
∗) X: Don’t care
S0 to :
M0 to :
BVL :
BVH :
FMT :
BU
:
CP
:
T1
:
CD
:
R0, R1:
swallow counter frequency division ratio setting
main divider frequency division ratio setting
VL band switch control
VH band switch control
FM trap switch control
UHF band switch control
charge pump current switching
test mode selection
charge pump OFF
reference divider frequency division ratio setting
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(output PNP Tr ON when “1”)
(200 µA when “1”, 50 µA when “0”)
(when “1”)
(when “1”)
(See the table below.)
Reference Divider Frequency Division Ratio Table
R1
R0
Reference divider
0
1
1024
1
1
512
X
0
640
∗) X: Don't care
—13—
CXA3185/3186N
3) 3-wire Bus Data Format
A-1 Mode (18-bit data format)
Band switch data
BU
/FMT
FMT
/BU
Frequency data
BVH BVL M8
M7
M6
M5
M4
M3
M2
M1
M0
S4
S3
S2
S1
S0
DATA
1
4
5
18
CLOCK
ENABLE
A-0/A-2/A-3 Modes (19-bit data format)
Band switch data
BU
/FMT
FMT
/BU
Frequency data
BVH BVL M9
M8
M7
M6
M5
M4
M3
M2
M1
M0
S4
S3
S2
S1
S0
DATA
1
4
5
19
CLOCK
ENABLE
A-4 Mode (27-bit data format)
Band switch data
BU
/FMT
FMT
/BU
Frequency data
BVH BVL M9
M8
S3
S2
Test data
S1
S0
X
19
20
CP
T1
CD
X
R1
R0
X
DATA
1
4
5
CLOCK
ENABLE
—14—
27
CXA3185/3186N
4) Bus Timing Chart
tSD
DATA
3V
1.5V
3V
1.5V
CLOCK
ENABLE
tHD
3V
1.5V
tWE
tSE
tHE
tSD = Data setup time
tHD = Data hold time
tSE = Enable setup time
tHE = Enable hold time
tWE = Enable waiting time
—15—
CXA3185/3186N
Circuit current vs. Supply voltage 1
Circuit current vs. Supply voltage 2
15
45
DICC - Circuit current [mA]
AICC - Circuit current [mA]
UHF
VHF
40
35
4.7
4.8
4.9
5.0
5.2
5.1
5.3
10
5
5.4
4.7
4.8
VCC1 - Supply voltage [V]
Band SW output voltage vs. Output current (BU, BVH, BVL)
9.2
9.0
4.9
5.0
5.1
5.2
5.3
5.4
VCC2 - Supply voltage [V]
Band SW output voltage vs. Output current (FMT)
9.2
9.0
VCC3=9V
VCC3=9V
8.8
Output voltage [V]
Output voltage [V]
8.8
8.6
5.0
VCC3=5V
4.8
VCC3=5V
4.6
0
5
10
15
20
4.4
25
Output current [mA]
I/O characteristics (Untuned input)
0
–20
fRF=100MHz (VHF)
fRF=450MHz (UHF)
fIF is both f=45MHz
–40
–60
–60
–50
–40
–30
0
1
2
3
4
Output current [mA]
20
IF output level [dBm]
5.0
4.8
4.6
4.4
8.6
–20
–10
0
10
RF input level [dBm]
—16—
5
6
CXA3185/3186N
30
UHF
VHF (Low) VHF (High)
25
Noise figure vs. Reception frequency (Untuned input, in DSB)
20
fIF=45MHz
NF - Noise figure [dB]
CG - Conversion gain [dB]
Conversion gain vs. Reception frequency (Untuned input)
40
fIF=45MHz
35
20
15
10
15
VHF (Low)
VHF (High)
10
UHF
5
5
0
0
0
100 200 300 400 500 600 700 800 900
0
100 200 300 400 500 600 700 800 900
Reception frequency [MHz]
Next adjacent cross modulation vs. Reception frequency
(Untuned input)
120
Oscillation frequency power supply fluctuation (PLL off)
400
VCC+5%
VCC–5%
(VCC=5V)
300
100
200
80
+B drift [kHz]
CM - Cross modulation [dBµ]
Reception frequency [MHz]
fIF=45MHz
fUD=fD+12MHz
fUD=fD–12MHz
(100kHz, 30% AM)
60
40
VHF (High)
VHF (Low)
100
UHF
0
–100
–200
20
0
–300
0
–400
100 200 300 400 500 600 700 800 900
0
Reception frequency [MHz]
Oscillation frequency [MHz]
PCS beat characteristics
+20
+10
fIF
0
IF output level [dBm]
–10
–20
–30
–40
fLocal=129MHz
fP=83.25MHz
fC=86.83MHz, (fP–12dB)
fS=87.75MHz, (fP–1.7dB)
fIF=45.75MHz
fBeat=fIF±920kHz
–50
fBeat
–60
–70
–80
–30
–20
–10
100 200 300 400 500 600 700 800 900
0
+10
SG output level [dBm]
(fP level)
—17—
+20
CXA3185/3186N
Tuning Response Time
VHF (Low) 95MHz → VHF (High) 395MHz
30
T=70ms
Varicap voltage [V]
20
10
0
5.0V/div
offset 10.0V
–90,0000ms
10,0000ms
20.0ms/div
110,000ms
UHF 413MHz → UHF 847MHz
30
T=70ms
Varicap voltage [V]
20
10
0
5.0V/div
offset 10.0V
–90,0000ms
10,0000ms
20.0ms/div
—18—
110,000ms
CXA3185/3186N
IF output spectrum
RL=0dBm
10dB/div
VHF (Low)
fRF=55MHz
fLO=100MHz
IF output [dBm]
RF input level : –40dBm
CENTER 45.0MHz
RES BW 1.0kHz
VBW 10Hz
IF output spectrum
SPAN 100.0kHz
SWP 30.0s
RL=0dBm
10dB/div
VHF (High)
fRF=350MHz
fLO=395MHz
IF output [dBm]
RF input level : –40dBm
CENTER 45.0MHz
RES BW 1.0kHz
VBW 10Hz
—19—
SPAN 100.0kHz
SWP 30.0s
CXA3185/3186N
IF output spectrum
RL=0dBm
10dB/div
UHF (Low)
fRF=800MHz
fLO=845MHz
IF output [dBm]
RF input level : –40dBm
CENTER 45.0MHz
RES BW 1.0kHz
VBW 10Hz
—20—
SPAN 100.0kHz
SWP 30.0s
CXA3185/3186N
VHF Input Impedance
j50
50MHz
50
VHFin
0
j100
BYP
j25
12
13
1000p
S11
350MHz
–j25
–j100
–j50
UHF Input Impedance
j50
UHFin2
0
UHFin1
j100
j25
14
15
50
1000p
S11
350MHz
800MHz
–j25
–j50
—21—
–j100
CXA3185/3186N
IF Output Impedance
j50
j25
0
j100
50
–j25
45MHz
–j100
–j50
—22—
CXA3185/3186N
Package Outline
Unit : mm
30PIN SSOP (PLASTIC)
+ 0.2
1.25 – 0.1
∗9.7 ± 0.1
1
+ 0.1
0.22 – 0.05
7.6 ± 0.2
16
∗5.6 ± 0.1
30
0.10
A
15
+ 0.05
0.15 – 0.02
0.65
0.13 M
0.5 ± 0.2
0.1 ± 0.1
0° to 10°
NOTE: Dimension “∗” does not include mold protrusion.
DETAIL A
PACKAGE STRUCTURE
PACKAGE MATERIAL
EPOXY RESIN
SONY CODE
SSOP-30P-L01
LEAD TREATMENT
SOLDER/PALLADIUM
PLATING
EIAJ CODE
SSOP030-P-0056
LEAD MATERIAL
42/COPPER ALLOY
PACKAGE MASS
0.1g
JEDEC CODE
NOTE : PALLADIUM PLATING
This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame).
—23—