KT8554B Datasheet, PDF (1/10 Pages) Samsung semiconductor – 1 CHIP CODECS

KT8554B/7B
1 CHIP CODECS
INTRODUCTION
The KT8554B/7B are single-chip PCM encoders and decoders
(PCM CODECs) and PCM line filters. These devices provide
all the functions required to interface a full-duplex voice
telephone circuit with a time-division-multiplex (TDM)
system.
These devices are designed to perform the transmit encoding
and receive decoding as well as the transmit and receive filter-
ing functions in PCM system. They are intended to be used
at the analog termination of a PCM line or trunk.
These devices provide the bandpass filtering of the analog
signals prior to encoding and after decoding. These combina-
tion devices perform the encoding and decoding of voice and
call progress tones as well as the signalling and supervision
information.
16-CERDIP
16-DIP-
300A
FEATURES
• Complete CODEC and filtering system
• Meets or exceeds AT&T D3/D4 and CCITT
specifications
µ-Law : KT8554B, A-Law : KT8557B
• On-chip auto zero, sample and hold, and precision
voltage references
• Low power dissipation : 60mW (operating)
3mW (standby)
• ± 5V operation
• TTL or CMOS compatible
• Automatic power down
PIN CONFIGURATION
16-SOP-BD300
-SG
ORDERING INFORMATION
Device
Package
Operating Temperature
KT8554BJ
KT8557BJ
16-CERDIP
- 25 ~ 125°C
KT8557BN
KT8554BN
16-DIP-300A
- 25 ~ 70°C
KT8554BD
KT8557BD
16-SOP-BD300
-SG
- 25 ~ 70°C
V _BB 1
GNDA 2
VF _RO 3
V_CC 4
FS _R 5
D_R 6
BCLK _R/CLKSEL 7
MCLK _R/PDN 8
16 VF _XI+
15 VF _XI-
14 GS _X
KT8554B/7B ^{13 TS X}
12 FS _XS
11 D _X
10 BCLK _X
9 MCLK _X
Fig. 1