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Details, datasheet, quote on part number:NJM2536A
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Datasheet text preview:
NJM2536A
RF Modulator for VHF Band
DESCRIPTION The NJM2536A is a RF modulator IC especially designed for VHF band RF modulator and consists of video clamp circuit, white clip circuit, video AM modulator and audio FM modulator, built into one chip. NJM2536AV FEATURES · Operating Voltage 5V · Picture-to-sound ratio is adjustable · VHF Oscillator on chip · Carrier-off switch function on chip · Regulator on chip · Bipolar Technology · Package Outline:DMP/SSOP14 BLOCK DIAGRAM NJM2536AM PACKAGE OUTLINE
REG OUT
CH SW
14
13
12
11
10
9
RF OSC
REGULA TOR
CLA MP & WHITE CLIP MIXER CA RRIER OFF SW A UDIO FM MODULA TOR
1 V IDEO IN
2 CA RRIER OFF SW
3 A NT SW DRIV E
4 RF OUT
5 GND1
6 P/S
A UDIO IN
4 .5 MH z TAN K
8 7
GND 2
CH2
VCC
CH1
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NJM2536A
ABSOLUTE MAXIMUM RATINGS Parameter Symbol Supply Voltage VCC Power Dissipation PD Input Voltage Operating Temperature Range Storage Temperature Range VI Topr Tstg (TA=25°C) Unit V mW V °C °C (TA=25°C) Unit V
Ratings 7 300 -0.3 to VCC -20 to +75 -40 to +125
RECOMMENDED OPERATING VOLTAGE RANGE Parameter Condition Operating Voltage
Symbol VCC
Min. 4.5
Typ. 5.0
Max. 5.5
ELECTRICAL CHARACTERISTICS Parameter Condition Symbol No video/audio input signal, Operating Current ICC CARRIER OFF SW(Pin2)=5V ANT SW DRIVE CARRIER OFF SW(Pin2)=5V VANT1 Output Voltage 1 ID=26mA ANT SW DRIVE CARRIER OFF SW(Pin2)=Open VANT2 Output Voltage 2 VCC=2V Video Output Level VO Video input signal(Pin1)=0.5VPP (Note 1) Video Modulation Depth mp Video input signal(Pin1)=0.5VPP (Note 1) Video Limiter Modulation Video input signal(Pin1)=1.0VPP mpmax Depth (Note 1) Video input signal(Pin1)=0.5VPP Differential Gain DG Staircase Video input signal(Pin1)=0.5VPP DP Differential Phase Staircase Picture-to-sound Ratio PS Video input signal(Pin1)=0.5VPP (Note 1) Sound FM Modulation Deviation of fs per 100mV b Sensitivity Audio input signal(Pin7)=0.05VPP Audio Distortion THD 1kHz sine wave Audio Signal-to-noise Sound Modulation 60% ASN Ratio 1kHz sine wave Maximum Sound FM Audio input signal(Pin7)=1.0VPP msmax Modulation 1kHz sine wave
Min. 13.5 3.7 0 (83) (70) (85) (11) -
Typ. 16.0 4.0 0.065 86 76 94 ±3 ±3 13 0.51 0.3 60 700
(VCC=5V,TA=25°C) Max. Unit 22.5 4.3 0.1 (89) (82) (98) (15) mA V V dBu % % % deg dB KHz/mV % dB %
(Note 1) Because AC characteristics largely depends on application circuit, these parameters are specified by the DC characteristics as shown in next page.
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NJM2536A
DC ELECTRICAL CHARACTERISTICS (VCC=5V,Pin2=2.5V, TA=25°C, otherwise noted. All measurements performed in the DC test circuit are shown in next page) Parameter Condition (Note 2) Symbol Min. Typ. Max. Unit Video Output Signal Gvv1=Gvvh1-Gvvl1 Gvv1 62.4 85 124.5 mV Amplitude 1 Video Output Signal Gvv2=Gvvh2-Gvvl2 Gvv2 62.4 85 124.5 mV Amplitude 2 Mp=((Gvv1-Mw)/Gvv1)x100 Video Modulation Depth Mp 70 76 82 % where Mw=Mwh-Mwl Video Limiter Modulation Mpmax=((Gvv1-Wc)/Gvv1)x100 Mpmax 85 94 98 % Depth (Note 2) where Wc=Wch-Wcl Picture-to-sound Ratio Ps=Psh-Psl Ps -70 -45 -35.1 mV
(Note 2) Explanation of symbols · · · · · · · · · · · · · · Vv : VIDEO IN output voltage at Pin1 CH1 output voltage at Pin11 CH SW (Pin13) input = 2.5V V11h :
V12h : CH1 output voltage at pin12 CH SW (Pin13) input = 0.5V Gvvh1: RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv, CH1 (Pin11) = V11h + 0.15V, CH SW (Pin13) input = 2.5V Gvvl1 : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv, CH1 (Pin11) = V11h - 0.15V, CH SW (Pin13) input = 2.5V Gvvh2 : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv, CH2 (Pin12) = V12h + 0.15V, CH SW (Pin13) input = 0.5V Gvvl2 : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv, CH2 (Pin12) = V12h - 0.15V, CH SW (Pin13) input = 0.5V Mwh : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv + 0.43V, CH1 (Pin11) = V11h + 0.15V, CH SW (Pin13) input = 2.5V
Mwl : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv + 0.43V, CH1 (Pin11) = V11h - 0.15V, CH SW (Pin13) input = 2.5V Wch : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv + 0.8V, CH1 (Pin11) = V11h + 0.15V, CH SW (Pin13) input = 2.5V Wcl : RF OUT output voltage at Pin4 VIDEO IN (Pin 1) input = Vv + 0.8V, CH1 (Pin11) = V11h - 0.15V, CH SW (Pin13) input = 2.5V
VPs : P/S output voltage at Pin6 CARRIER OFF SW (Pin 2) input = 2.5V Psh : RF OUT output voltage at Pin4 P/S (Pin 6) input = VPs + 0.2V, CH1 (Pin11) = 2.4V, CH SW (Pin13) input = 2.5V Psl : RF OUT output voltage at Pin4 P/S (Pin 6) input = VPs - 0.2V, CH1 (Pin11) = 2.4V, CH SW (Pin13) input = 2.5V
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