ZL50234GDC ZARLINK [Zarlink Semiconductor Inc], ZL50234GDC Datasheet - Page 2

• Manufacturer Part Number: ZL50234GDC
• Description: 8 Channel Voice Echo Canceller
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

2
Description
The ZL50234 Voice Echo Canceller implements a cost effective solution for telephony voice-band echo cancellation
conforming to ITU-T G.168 requirements. The ZL50234 architecture contains 4 groups of two echo cancellers (ECA
and ECB) which can be configured to provide two channels of 64 milliseconds or one channel of 128 milliseconds
echo cancellation. This provides 8 channels of 64 milliseconds to 4 channels of 128 milliseconds echo cancellation
or any combination of the two configurations. The ZL50234 supports ITU-T G.165 and G.164 tone disable
requirements.
ZL50234
RESETB
TRSTB
IRQB
VDD2
TMS
TDO
TCK
VSS
VSS
R/W
TDI
DTA
IC0
DS
CS
NC
NC
D0
D1
D2
D3
D4
D5
D6
D7
V
DD1
= 3.3V
(100 pin LQFP)
Figure 2 - 100 Pin LQFP
Zarlink Semiconductor Inc.
ZL50234QC
V
DD2
= 1.8V
Data Sheet
NC
NC
NC
IC0
IC0
IC0
VSS
IC0
IC0
IC0
IC0
VDD2
C4ib
Foib
Rin
Sin
Rout
Sout
ODE
VSS
NC
NC
NC
NC
NC