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KT8554B Datasheet

  • KT8554B

  • 1 CHIP CODECS

  • 10頁

  • SAMSUNG   SAMSUNG

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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
鈥?/div>
Complete CODEC and filtering system
鈥?/div>
Meets or exceeds AT&T D3/D4 and CCITT
specifications
碌-Law
: KT8554B, A-Law : KT8557B
鈥?/div>
On-chip auto zero, sample and hold, and precision
voltage references
鈥?/div>
Low power dissipation : 60mW (operating)
3mW (standby)
鈥?鹵
5V operation
鈥?/div>
TTL or CMOS compatible
鈥?/div>
Automatic power down
16-SOP-BD300
-SG
ORDERING INFORMATION
Device
KT8554BJ
KT8557BJ
KT8557BN
KT8554BN
Package
16-CERDIP
16-DIP-300A
16-SOP-BD300
-SG
Operating Temperature
- 25 ~ 125擄C
- 25 ~ 70擄C
- 25 ~ 70擄C
PIN CONFIGURATION
KT8554BD
KT8557BD
V
BB
GNDA
1
16
VF
X
I
+
VF
X
I
-
GS
X
TS
X
FS
X
S
D
X
BCLK
2
15
VF
R
O
V
CC
FS
R
D
R
BCLK
R
/CLKSEL
3
14
4
KT8554B/7B
13
5
12
6
11
7
10
X
MCLK
R
/PDN
8
9
MCLK
X
Fig. 1

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