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CXA3219M
UHF-Band RF Modulator for VCR
Description The CXA3219M is a UHF-band RF modulator which converts the frequency of audio and video signals. Some circuits which comprise this IC are a UHF oscillator video clamp, white clip, video modulator, audio FM modulator and an intercarrier SW. Features * Low voltage of 5V * Wide bandwidth 470 to 750MHz * UHF oscillator greatly reduces external parts * Sharp white clip circuit * Built-in voltage regulator can accept large fluctuation of supply voltage * Video input of 0.5Vp-p for general-purpose use * Mixer simplifies RF unit design * Picture/sound ratio is adjustable with external parts * Intercarrier switch Structure Bipolar silicon monolithic IC Block Diagram and Pin Configuration
ANALOG VCC OSC GND
16 pin SOP (Plastic)
Applications PAL system VCR Absolute Maximum Ratings Supply voltage VCC 7 V Operating temperature Topr -20 to +75 C Storage temperature Tstg -55 to +150 C Allowable power dissipation PD 350 mW
* * * *
Recommended Supply Voltage Range Supply voltage VCC 5.0 0.5
V
RF-OUT
OSC VCC
OSC4
OSC3
16
15
14
13
OSC2
10 7
12
11
AMP
VIDEO MIXER
UHF OSC
FM-OSC
W/C-CLAMP REG
1
2
3
4
5
6
Audio-in
T1/T2-SW
FM-Tank
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.
ANALOG-GND
-1-
FM-Tank
Video-in
PS-ADJ
REG
OSC1
9 8
E97X19-PS
CXA3219M
Pin Description and Equivalent Circuit Pin No. 1 Symbol GND1 Typical pin voltage [V] Equivalent circuit Description GND for RF/audio. P/S adjustment (Adding a capacitor between Pin 2 and GND increases P/S ratio.) Video modulation depth adjustment (Adding a resistor between Pin 2 and GND increases the modulation depth; adding a resistor between Pins 2 and 4 decreases the modulation depth.)
2
P/S ADJ
1.8
2 11.4k
740
53.8k
3
T1/T2 SW
2.4
3 37.6k
T1/T2 SW. T1 for GND. T2 for OPEN.
75k
4
4
REG OUT
4.1
12.5k
Regulator output.
5
AUDIO IN
0
5 22.5k
Audio input.
6
6.4k
6
TANK1
3.1
1.6k
5.5MHz audio tank coil connection.
-2-
CXA3219M
Pin No.
Symbol
Typical pin voltage [V]
Equivalent circuit
7
Description
7.8k
7
TANK2
2.9
1.6k
6.0MHz audio tank coil connection.
8.2k
8
VIDEO IN
2.6
8 32.4k
Video input.
12
11 10
9
9 10 11 12
OSC1 OSC2 OSC3 OSC4
2.5 1.7 1.7 2.5
8k
130
130
Oscillator pin.
8k
13 14 15
GND2 VCC1 VCC2
GND for oscillator. Power supply for oscillator. Power supply for RF/audio.
125
16
RF OUT
4.1
16 1.9k
RF output.
-3-
CXA3219M
Electrical Characteristics 1 Refer to Electrical Characteristics Test Circuit. (Ta = 25C, VCC = 5V, fP = 591.25MHz) Item Supply current Video output level Video modulation depth Max. video modulation depth (During limiter operation) Chroma beat Sync crush level Differential gain Differential phase Video 2nd-harmonic wave ratio PS ratio Audio FM modulation sensitivity Audio distortion Symbol ICC Vo mp Conditions V1 (VIDEO IN) and V2 (AUDIO IN) at no signal 1 V1 = 0.5Vp-p, FLAT FIELD signal input Min. 22 78.7 72 Typ. 28 81.2 78.5 Max. 35 83.7 86 Unit mA dBV %
mp (Max.) Vcb Sync DG DP VVH Vps S1 (T1) S2 (T2) THD
V1 = 1.0Vp-p, FLAT FIELD signal input V1 = 4.43MHz, 0.5Vp-p sine wave input5 V1 = 0.5Vp-p, FLAT FIELD signal input Sync = (1 - S/W * 10/4) x 100 STAIR STEP signal input V1 = 0.5Vp-p2 STAIR STEP signal input V1 = 0.5Vp-p2 V1 = 0.5Vp-p, 1MHz sine wave input3 V1 = no input, fs = 5.5MHz
92
95.5
99
%
68 - 0 -5 48 11.5
78 2 1.6 0 52.5 14 0.420 0.400 0.4
- 5 5 5 - 16.5 0.455 0.440 1
dB % % deg dB dB kHz/mV %
V2 = 100mVp-p, fs = 5.5MHz 0.400 1kHz sine wave input fs frequency change/0.1V6 fs = 6.0MHz 0.380 0 V2 = 1kHz sine wave input4 V2 = 1kHz sine wave input 0dB at fs = 5.5MHz with 60kHz deviation V1 = STAIR STEP signal input (rms measurement) V2 = 1Vp-p, 1kHz sine wave input (T1) fs frequency change (kHz)/100kHz x 100 Difference between video carrier (V1 = no input) and 2nd-harmonic wave, at PS ratio of 14dB conversion
Audio S/N ratio
ASN
45
54
-
dB
Max. audio FM modulation depth Audio 2nd-harmonic wave ratio
ms (Max.) VS2
380
415
-
%
52
57
-
dB
-4-
CXA3219M
Electrical Characteristics 2 1. Video S/N 50dB (min.), 58dB (typ.)
2. Video amplitude frequency characteristics Within 1dB at 0.5 to 5MHz (at 1MHz reference) 3. APL variation (Normalized to APL 50%) 4. Pin 5 input impedance 5. Pin 8 input impedance Within 2% at 10 to 90% 1M and above 1M and above
1 Spectrum analyzer with 50 input impedance should be used to test video output level. Measured value Vo (dBm) is used to calculate output according to the following relationship: Output (dB) = Vo (dBm) + 107 50 terminal direct reading value 2 Measured after demodulating by standard demodulator. 3 fc + 2MHz component of V1 carrier (fc) level. 4 Adjust the V2 level to obtain an FM deviation of 30kHz and measure the harmonic distortion after demodulating Vo with a standard demodulator. 5 Video determined by measuring ratio (dB) of chroma beat to video carrier level when V1 = no signal by spectrum analyzer. 6 R1 (12k) of the Electrical Characteristics Test Circuit is added for obtaining a better match between the audio modulation sensitivity classifications and the actual pre-emphasis.
Input Waveform
FLAT FIELD signal
STAIR STEP signal APL 50% subcarrier 20 IRE
V white 100 IRE
90 IRE 0.5Vp-p
V sync 40 IRE 63.5s
40 IRE 63.5s
-5-
CXA3219M
Electrical Characteristics Test Circuit
30V 10 5V 10 10k
CLK
LAT
DIN
10k 10 7
1000p 100
62p XTAL 4MHz 724-41RVR39L2 16 15
20p
1000p
10k
2SC1623 10k
14
13
12
11
9
CXA1356N
1 1000p
2 1000p
3
4
5 1000p 50
6
8 0.1 10k 0.022
47k 100p VCC 22p RF OUT 10 1000p 100p
1T362 47k 2p 4p 10p 2p 4p 1000p 1000p
RF OUT
GND2
OSC2
OSC4
VCC1
16
15
14
13
OSC3
VCC2
12
11
10
AMP
VIDEO MIXER FM-OSC REG
UHF OSC
W/C-CLAMP 5 6 7 8
1
2
3
4
TANK2
GND1
REG
P/S ADJ
T1/T2 SW
1M
5.5 6.0 10 MHz MHz
TANK1
VIDEO
0.33 75
AUD
OSC1
9
VIDEO IN V1
6p AUD IN V2
S1 100p
47p 1000p 22k
47p
R1 12k
1000p
-6-
CXA3219M
Application Circuit 1
100p VCC 22p RF OUT 10
100p
2p 10p
1000p
4p
2p
4p
1000p
RF OUT
GND2
OSC4
OSC3
16
15
14
13
OSC2
VCC2
VCC1
12
11
10
AMP
VIDEO MIXER FM-OSC REG
UHF OSC
W/C-CLAMP 5 6 7 8
1
2
3
4
P/S ADJ
T1/T2 SW
TANK1
TANK2
VIDEO
0.33 75
GND1
REG
AUD
OSC1
9
5.5 6.0 10 MHz MHz 100p
VIDEO IN V1
6p 1M AUD IN V2
S1 12k 22k
47p 1000p
47p
1000p
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 patent and other right due to same.
-7-
CXA3219M
Application Circuit 2
100p VCC 22p RF OUT 10
100p 50
SG -10dBm
RF OUT
GND2
OSC4
OSC3
16
15
14
13
OSC2
VCC2
VCC1
12
11
10
AMP
VIDEO MIXER FM-OSC REG
UHF OSC
W/C-CLAMP 5 6 7 8
1
2
3
4
P/S ADJ
T1/T2 SW
TANK1
TANK2
VIDEO
0.33 75
GND1
REG
AUD
OSC1
9
5.5 6.0 10 MHz MHz 100p
VIDEO IN V1
6p 1M AUD IN V2
S1 12k 22k
47p
47p
1n
1n
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 patent and other right due to same.
-8-
CXA3219M
Example of Representative Characteristics
Supply voltage vs. Video modulation depth Supply voltage vs. Video output level
90 100 mp Max mp 85 (fp = 591.25MHz, Ta = 25C)
mp - Video modulation depth [%]
Vo - Video output level [dBV]
95 Max. video modulation depth mp Max.
90
80
85
80
75
75
Video modulation depth mp 4 5 6 Vcc - Supply voltage [V] 7
70 4 5 6 Vcc - Supply voltage [V] 7
70
Supply voltage vs. PS ratio
25
Supply voltage vs. Audio FM modulation sensitivity
S1 - Audio FM modulation sensitivity [kHz/mV]
0.7
20
0.6
Vps - PS ratio [dB]
15
0.5
10
0.4
5
0.3
0 4 5 6 Vcc - Supply voltage [V] 7
0.2 4 5 6 Vcc - Supply voltage [V] 7
-9-
CXA3219M
Ambient temperature vs. Video output level
90 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
Ambient temperature vs. Video modulation depth
90 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
85
mp - Video modulation depth [%]
80
Vo - Video output level [dBV]
85
80
80
75
75
70 -20
0 20 40 60 Ta - Ambient temperature [C]
70 -20
0 20 40 60 Ta - Ambient temperature [C]
80
Ambient temperature vs. Max. video modulation dep
100 20
Ambient temperature vs. PS ratio
mp Max - Max. video modulation depth [%]
95
15
90
C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
Vps - PS ratio [dB]
10
C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
85
5
80 -20
0 20 40 60 Ta - Ambient temperature [C]
80
0 -20
0 20 40 60 Ta - Ambient temperature [C]
80
Ambient temperature vs. Audio 2nd-harmonic wave ratio
70
Ambient temperature vs. Video 2nd-harmonic wave ratio
70
60
VvH - Video 2nd-harmonic wave ratio [dB]
Vs2 - Audio 2nd-harmonic wave ratio [dB]
60
50
C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
50 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
40
40
30 -20
0 20 40 60 Ta - Ambient temperature [C]
80
30 -20
0 20 40 60 Ta - Ambient temperature [C]
80
- 10 -
CXA3219M
Ambient temperature vs. Chroma beat
100 20
Ambient temperature vs. Differential gain
C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
90
16
80 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
DG - Differential gain [%]
80
Vcb - Chroma beat [dB]
12
70
8
60
4
50 -20
0 20 40 60 Ta - Ambient temperature [C]
0 -20
0 20 40 60 Ta - Ambient temperature [C]
80
Ambient temperature vs. Differential phase
20 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 1.0
Ambient temperature vs. Audio distortion
C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz
DP - Differential phase [deg]
10
THD - Audio distortion [%]
80
0.8
0.6
0
0.4
-10
0.2
-20 -20
0 20 40 60 Ta - Ambient temperature [C]
0 -20
0 20 40 60 Ta - Ambient temperature [C]
80
Ambient temperature vs. Audio S/N ratio
70 C.C.I.R 35ch: 583.25MHz 45ch: 663.25MHz 55ch: 743.25MHz 15
Ambient temperature vs. Sync crush level
C.C.I.R 40ch: 623.25MHz
60
Sync - Sync crush level [%]
80
ASN - Audio S/N ratio [dB]
10
5
50
0
40
-5
30 -20
0 20 40 60 Ta - Ambient temperature [C]
-10 -20
0 20 40 60 Ta - Ambient temperature [C]
80
- 11 -
CXA3219M
Ambient temperature vs. Audio FM modulation sensitivity
SI - Audio FM modulation sensitivity [kHz/mV]
0.7 C.C.I.R 40ch: 623.25MHz 0.6
Ambient temperature vs. Max. audio FM modulation depth
ms Max - Max. audio FM modulation depth [%]
500 C.C.I.R 40ch: 623.25MHz
400
0.5
0.4
300
0.3
0.2 -20
0 20 40 60 Ta - Ambient temperature [C]
80
200 -20
0 20 40 60 Ta - Ambient temperature [C]
80
- 12 -
CXA3219M
Video carrier frequency vs. Video output level
90
Video carrier frequency vs. Video modulation depth
100 (Ta = 25C) mp Max mp
85
mp - Video modulation depth [%]
Vo - Video output level [dBV]
90
Max. video modulation depth mp Max.
80
80
75
Video modulation depth mp 70 550
70 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
Video carrier frequency vs. PS ratio
25
Video carrier frequency vs. Audio 2nd-harmonic wave ratio
70
20
Vs2 - Audio 2nd-harmonic wave [dB]
60
Vps - PS ratio [dB]
15
50
10
40
5
0 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
30 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
Video carrier frequency vs. Video 2nd-harmonic wave ratio
70 100
Video carrier frequency vs. Chroma beat
VvH - Video 2nd-harmonic wave ratio [dB]
90
Vcb - Chroma beat [dB]
600 650 700 750 800 850 fp - Video carrier frequency [MHz] 900
60
80
50
70
40
60
30 550
50 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
- 13 -
CXA3219M
Video carrier frequency vs. Audio distortion
1.0
Video carrier frequency vs. Audio S/N ratio
70
ASN - Audio S/N ratio [dB]
600 650 700 750 800 850 fp - Video carrier frequency [MHz] 900
THD - Audio distortion [%]
0.8
60
0.6
50
0.4
40
0.2
0 550
30 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
Video carrier frequency vs. Differential gain
20
Video carrier frequency vs. Differential phase
20
15
DP - Differential phase [deg]
600 650 700 750 800 850 fp - Video carrier frequency [MHz] 900
DG - Differential gain [%]
10
10
0
5
-10
0 550
-20 550
600 650 700 750 800 850 fp - Video carrier frequency [MHz]
900
- 14 -
CXA3219M
Package Outline
Unit: mm
16PIN SOP (PLASTIC) 300mil
+ 0.4 9.9 - 0.1
+ 0.4 1.85 - 0.15
16
9 0.15 + 0.2 0.1 - 0.05
+ 0.3 5.3 - 0.1
7.9 0.4
0.45 0.1
1.27
+ 0.1 0.2 - 0.05
0.12 M
PACKAGE STRUCTURE
PACKAGE MATERIAL SONY CODE EIAJ CODE JEDEC CODE PACKAGE WEIGHT SOP-16P-L01 SOP016-P-0300-A LEAD TREATMENT LEAD MATERIAL EPOXY RESIN SOLDER PLATING COPPER ALLOY
0.2g
- 15 -
0.5 0.2
1
8
6.9

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