IL145567 Datasheet (IK Semiconductor)

IL145567, PCM Codec-Filter

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

TECHNICAL DATA PCM CODEC - FILTER IL145567 IL145567N 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 dissipate

IL145567 Features

* oad = 600 Ohm Rload = 1200 Ohm Rload = 10 кOhm Noise attenuation on supply on Vcc or VBB (VPO- connected to VPI) VPO

* or VPO+ connected to GNDA 0

* 4 kHz 4

* 50 kHz Differential noise attenuation on supply on Vcc or VBB (VPO- connected to VPI), VPO

* connected to VPO+ ,