Codec Interface; Figure 7-9.Dsp1611/17/18/27/28/29 To Lucent Technologies Csp1027 Codec Interface; Figure 7-10.Dsp1611/17/18/27/28/29 To Lucent Technologies T7525 Codec Interface - Lucent Technologies DSP1617 Information Manual

Information Manual
April 1998

7.4 Codec Interface

Figure 7-9 is the schematic showing the connections required to interface the DSP1611/17/18/27/28/29 device to
an Lucent Technologies CSP1027 linear codec.
DSP device to an Lucent Technologies T7525 high-precision codec. In the first example, OCK of the DSP is active
and ICK, ILD, and OLD are passive. The codec is in the nonmultiprocessor mode, although it can be used in the
multiprocessor mode. In the second example, both input and output are passive.
CSP1027
LINEAR
CODEC
Figure 7-9. DSP1611/17/18/27/28/29 to Lucent Technologies CSP1027 Codec Interface
T7525
PRECISION
CODEC
Figure 7-10. DSP1611/17/18/27/28/29 to Lucent Technologies T7525 Codec Interface
Lucent Technologies Inc.
DSP1611/17/18/27/28/29 DIGITAL SIGNAL PROCESSOR
Figure 7-10
IOCK
SYNC
DI
DO
SADD
V
SMODE2
SS
SMODE1
V
SS
SMODE0
V
DD
2.048 MHz
MCLK
XFS
TFS
RFS
RPCM
TPCM
ATFS
V
DD
DRAFT COPY
shows the connections necessary to interface the
OCK
ICK
OLD
ILD
DO
DSP1611/17/18/27/28/29
DI
SADD
V
DOEN
SS
OCK
ICK
ILD
OLD
DSP1611/17/18/27/28/29
DO
DI
DOEN
V
SS
Serial I/O
5-4179
5-4180
7-13