CXA2174S Sony, CXA2174S Datasheet
CXA2174S
Related parts for CXA2174S
CXA2174S Summary of contents
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... US Audio Multiplexing Decoder Description The CXA2174S designed as a decoder for the Zenith TV Multi-channel System and also 2 corresponds with I C BUS. Functions include stereo demodulation, SAP (Separate Audio Program) demodulation, dbx noise reduction and sound processor. Various kinds of filters are built-in this IC. ...
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... V CC 7.5k 35µ 4. 7.5k 35µ 10. – 3 – (Ta = 25°C, V Description CC LSOUT right channel output pin. LSOUT left channel output pin. 2.1V Serial data I/O pin. V > 3. < 1.5V IL 2.1V Serial clock input pin. V > 3. < 1.5V IL Digital block GND. CXA2174S = 9V) CC ...
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... PCINT2 4.0V Equivalent circuit V CC 10k V CC 147 6 53k 15k 147 7 1k 200µ 147 8 30k 22k V CC 147 9 10k 10k – 4 – CXA2174S Description Input the ( signal from MAINOUT (Pin 7 signal output pin. Stereo block PLL loop filter integrating pin. ...
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... GND.) 11k 11k 15k 30k 2 Set the filter and VCO reference current. The reference current is adjusted with the BUS DATA based on the current which flows to this pin. (Connect a 62k (±1%) resistor between this pin and GND.) CXA2174S ...
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... Set the time constant for the SAP carrier detection circuit. (Connect a 4.7µF capacitor 4k between this pin and GND.) 50µ Supply voltage pin. Vcc (L–R) signal output pin Input the (L-R) signal from SUBOUT (Pin 17). 147 21 Input the (SAP) signal from SAPOUT (Pin 20). CXA2174S ...
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... GND.) Vcc Weight the variable de-emphasis control effective 2.9V value detection circuit. (Connect a 0.047µF capacitor 36k and a 3k resistor in series between this pin and GND.) 4k 50µ CXA2174S ...
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... 20k 50µ 7.5µ – 8 – CXA2174S Description Determine the restoration time constant of the variable de-rmphasis control effective value detection circuit. (the specified restoration time constant can be obtained by connecting a 3.3µF capacitor between this pin and GND.) Variable de-emphasis output pin. ...
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... V CC 10k 29 30 23.5k 23.5k 4V – 9 – CXA2174S Description V CC Weight the VCA control effective value detection circuit. 28 (Connect a 1µF capacitor and a 3.9k resistor in series between this pin and GND.) Right channel external input pin. Left channel external input ...
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... LSOUT-R output to the minimum. 4) The adjustments in 2 and 3 above are performed to optimize the separation. 5) “WIDEBAND” Adjustment range: ±30% Adjustment bits: 6 bits Adjust this IC through Tuner and IF when this IC is mounted in the set. “SPECTRAL” Adjustment range: ±15% Adjustment bits: 6 bits – 13 – CXA2174S ...
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... Note) The micro computer reads both SAP and NOISE status and judges SAP discrimination. DATA BIT6 BIT5 BIT4 TEST-DA TEST1 EXT1 STA4 STA5 STA6 BIT4 BIT3 BIT2 NOISE — — – 14 – BIT3 BIT2 BIT1 ATT SPECTRAL WIDEBAND NRSW FOMO SAPC VOL-L VOL-R STA7 STA8 BIT1 BIT0 — — CXA2174S BIT0 M1 : don't care ...
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... SAP brodecasting 3F Left channel volume control 3F Right channel volume control POWER ON RESET detection; Stereo discrimination of the COMPIN input signal; SAP discrimination of the COMPIN input signal; Noise level discrimination of the SAP signal; – 15 – Contents Contents 1: RESET 1: Stereo 1: SAP 1: Noise CXA2174S ...
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... Select TV mode or external input mode mode 1 = External input mode NRSW (1): Select stereo mode or SAP mode 0 = Stereo mode 1 = SAP mode FOMO (1): Select forced MONO mode 0 = Normal mode 1 = Forced MONO mode M1 (1): Mute the LSOUT-L and LSOUT-R output Mute Mute OFF – 16 – CXA2174S ...
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... When there is no SAP signal, the conditions for selecting SAP output are selected by SAPC output is selected 1 = SAP output is selected VOL-L (6): LSOUT-L output signal level control 0 = Volume min Volume max. –1.25dB/STEP VOL-R (6): LSOUT-R output signal level control 0 = Volume min Volume max. –1.25dB/STEP – 17 – CXA2174S ...
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... R NRSW = 1 (SAP output) right channel • Regardless of the presence of SAP discrimination, dbx input: “SAP” left channel: SAP, right channel: SAP However, when there is no SAP, SAPOUT output is soft muted (–7dB) “Forced MONO” “MUTE” – 18 – CXA2174S SAPC = 1 ...
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... CXA2174S Output dbx input SAPC Lch Rch 1 MUTE SAP SAP SAP 1 SAP SAP 1 MUTE (SAP) (SAP) (SAP) 1 (SAP (SAP – MUTE – MUTE SAP SAP SAP 1 SAP SAP 1 (SAP) (SAP) (SAP) 1 (SAP (SAP) 1 MUTE MUTE SAP SAP SAP 1 SAP ...
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... CXA2174S Output dbx input SAPC Lch Rch 0 MUTE MUTE MUTE (SAP) (SAP) (SAP) 0 (SAP (SAP – MUTE – MUTE – MUTE (SAP) (SAP) (SAP) 0 (SAP (SAP) 0 MUTE MUTE SAP SAP SAP 0 SAP SAP 0 MUTE MUTE (SAP) (SAP) (SAP) 0 (SAP) ...
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... FIXED VARIABLE DEEMPHASIS DEEMPHASIS (VE OUT 4.7µ HPF RMS LPF DET LPF RMS DET Fig 3. dbx-TV block – 21 – 15 SAP dbx-TV NR TELEMETRY FM 10kHz FM 3kHz 50 – 10kHz 6. 15.734kHz H (MAIN IN) 6 MATRIX 18 (Lch (Rch) dbx-TV BLOCK MODE CONTROL (VCA IN VCA MATRIX CXA2174S to TVSW ...
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... The current flowing to the resistor connecting IREF (Pin 13) with GND become the reference current carrier as shown in the Fig. 1. First, the SAP signal only is H carrier amplitude. NOISE discrimination is performed by detecting the H – 22 – CXA2174S ...
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... STA 4.0 HD — — t 4.7 LOW — — t 4.0 HIGH — — STA 4 DAT 0 — — DAT 250 — — — — — — 300 STO 4.7 — — STA STA t : STO CXA2174S Unit V µ kHz µs ns µs ns µs P ...
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... C signals, SDA (Serial DATA) and SCL (Serial CLOCK) signals. SDA is a bidirectional signal. • Accordingly there are 3 values outputs and Hi- • transfer begins with Start Condition and ends with Stop Condition. Start Condition S SDA SCL L Hi-Z L – 25 – CXA2174S Stop Condition P ...
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... DATA (n+1) ACK Hi DATA ACK 2 C controller) H during Read ACK MSB DATA – 26 – L during Write MSB LSB Hi ACK Sub Address DATA ( Data can be transferred in 8-bit units to be set as required. Sub address is incremented automatically. Hi DATA ACK LSB ACK CXA2174S Hi ACK P ...
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... Measurement point: LSOUT-L/R 1.0 Standard level (100%) –10 0 Input level [dB] Input level vs. Distortion characteristics 2 (Stereo) Input signal: Stereo L = – 9V, 30kHz using LPF, ST mode CC Measurement point: LSOUT-L/R 1.0 10 –10 10 – 27 – CXA2174S (dbx-TVNR ON), 1kHz 0dB = 100% modulation level Standard level (100 Input level [dB] ...
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... Main LPF and Sub LPF frequency characteristics –10 –20 –30 –40 –50 1 100 100 0 90 – – – – –100 100 120 0 – 28 – CXA2174S 100 Frequency [kHz] Volume charactiristics Input: AUXIN (Pins 29, 30) 1kHz, 490mVrms Output: LSOUT (Pins Control data VOL-L, VOL-R ...
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... PACKAGE STRUCTURE MOLDING COMPOUND LEAD TREATMENT LEAD MATERIAL PACKAGE MASS – 29 – CXA2174S 0˚ to 15˚ Two kinds of package surface: 1.All mat surface type. 2.All mirror surface type. EPOXY RESIN PALLADIUM PLATING COPPER ALLOY 1.8g Sony Corporation ...