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KK145567

KODENSHI KOREA
Part Number KK145567
Manufacturer KODENSHI KOREA
Published Jun 14, 2009
Description PCM CODEC - FILTER
Detailed Description www.DataSheet4U.com TECHNICAL DATA PCM CODEC - FILTER KK145567 KK145567N is a one-chip PCM-cofidec which converts sp...
Datasheet PDF File KK145567 PDF File

KK145567
KK145567


Overview
www.
DataSheet4U.
com TECHNICAL DATA PCM CODEC - FILTER KK145567 KK145567N is a one-chip PCM-cofidec which converts speech signal into digital form and backwards.
The IC is design to operate in synchronous and asynchronous systems and is comprised of: - reference generator; - filters on switching capacitors in transmission and receipt channels ; - two operational amplifiers.
The IC does signal companding under the A-low and full differential processing of analogue signals for reduction of noises.
Typical dissipated power is 40mW, under reduced power – 1 mW at ±5 V.
ORDERING INFORMATION KK145567N Plastic DIP TA = -40° to 85° C GSX ANBL FSX FSR CLKSEL Vcc VFXIActive RCfilter of LF GND VBB 3-poles filter of HF MCLKR/ BCLKR/ MCLKX BCLKX PDN 5-poles active filter of LF Control logic TSx VFX+ COMP VPO+ Reference generator R-D-to-A converter С-D-to-A converter 4 VPO− 4 VPI VFRO Active RCfilter of LF 5-poles filter of LF 8 Shift register Transmitti ng register Dx Multiplexer Receivin Storage/hol ding circuit 8 Receiving register DR g latch Note – COMP – comparator Figure 1 – Block diagram 1 www.
DataSheet4U.
com KK145567 Pin arrangement in package Pins description Pin № 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 Symbol VPO+ GND VPO − VPI VFRO Vcc FSR DR BCLKR/CLKSEL MCLKR/PDN MCLKx BCLKx Dx FSx Description Output of power OA Common output Output of power OA Input of power OA Output of digital signal audio frequency Supply 5 V Input of receipt cycle synchronisation Input of digital data receipt Input of clock oscillator and selector of basic oscillator frequency Input of main clock oscillator and underconsumption control Input of main clock oscillator for transmission Input of clock oscillator for data transmission (synchronised with MCLKx) Output of transmitted digital data Input of transmission cycle synchronisation Output of transmission temporary interval indicator Input of feedback loop control Output of input OA Input of transmitted...


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