...n-chip * NR ON/OFF, REC/PB, MPX filter ON/OFF, Dolby S type switches * Small package (28-pin SOP, 28-pin SDIP) * Low current consumption 13m...amplifier input pin to drive multiplex filter Reference level = -19dBm
MPX IN
VEE VCC
VCT 62k...
Description
Dolby B-C Type Noise Reduction System with Built-in S type Switch
...or difference input * Band pass filter, trap and delay line * Sharpness function * compensation circuit * R, B output delay time adjustment...amplifier gain is high, the output voltage is high.
GND
VEE
48
PICTURE
VCC1
48
Ad...
...tors (2 modes). * High-band cut filter frequency can be adjusted by the external capacitance. Applications * Car stereos * Stereo cassette d...amplifier block
120s FWD frequency characteristics 120s FWD frequency characteristics 70s FWD frequ...
Description
Dolby B Type Noise Reduction System with Playback Equalizer
...tors (2 modes). * High-band cut filter frequency can be adjusted by the external capacitance. Applications * Car stereo cassette decks * Cas...amplifier block 120 s FWD frequency response 70 s FWD frequency response Signal handling Total harmo...
Description
Dolby B/C Type Noise Reduction System with Playback Equalizer
...ut pin which is connected to IF filter.
--4--
Electrical Characteristics
Bias and SW conditions MIN Limit Min. Typ. Max. Input Input waveform and bias description point measurement method description BS TUNE FEOUT point Measurement O...
... after passing through the data filter of the IF IC (CXA1484A) is input. Connects to the reference voltage pin of the IF IC. (Pin 15 of the CXA1484A) Comparator output. Not connected. Ground. Battery saving control pin. Battery saving state...
Description
M-ary FSK Demodulating Comparator M-ary FSK Demodulating Comparator Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C
...tput. Connect a 455 kHz ceramic filter between this pin and IF IN.
GND
4
VCC
8k 8k 1.5k VCC 1.5k
Power supply.
5
IF IN
1.4 V
5
IF limiter amplifier input.
GND 72
6
40k
6
B.S.
--
140k GND VCC
Con...
Description
From old datasheet system IF amplifier for M-ary FSK Pagers