W681512S Nuvoton Technology Corporation of America, W681512S Datasheet
W681512S
Manufacturer Part Number
W681512S
Description
IC VOICEBAND CODEC 5V 1CH 20SOP
Manufacturer
Nuvoton Technology Corporation of America
Type
PCMr
Datasheet
1.W681512RG_TR.pdf
(2 pages)
Specifications of W681512S
Data Interface
PCM Audio Interface
Resolution (bits)
8 b
Number Of Adcs / Dacs
1 / 1
Sigma Delta
No
Voltage - Supply, Analog
4.5 V ~ 5.5 V
Voltage - Supply, Digital
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-SOP
For Use With
W681513DK - KIT DEVELOPMENT FOR W681513W681512DK - KIT DEVELOPMENT FOR W681512W681511DK - KIT DEVELOPMENT FOR W681511W681512ES - EVALUATION SYSTEM FOR W681512
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W681512SG
Manufacturer:
M-TEK
Quantity:
12 000
Part Number:
W681512SG
Manufacturer:
NUVOTON
Quantity:
20 000
Winbond’s W681512
Single-Channel CODEC
The W681512 single channel voice CODEC is an
analog-to-digital and digital-to-analog converter
that complies with ITU-T G.712 specifications.
The CODEC features complete µ-Law and A-Law
companders (pin selectable) that are designed to
comply with ITU-T G.711 specifications. The chip
also offers a fully differential analog output.
In order to provide the cleanest possible signal,
the W681512 CODEC complies with the ITU-T
G.712 recommendation for analog-to-digital pre-
filters (also known as anti-aliasing filters) and
Digital-to-Analog post filter (signal smoothing
filter).
The W681512 CODEC contains an additional
analog power amplifier that drives higher current
output. The power amplifier gain levels can be
adjusted via a set of external resistors to drive an
output level of up to 6.3V, peak-to-peak, across a
300-Ω load.
The PCM interface for the W681512 produces 8-
bit digital data (µ-Law or A-Law) at a sampling
rate of 8kHz. It can communicate in four different
clock formats; short frame sync, long frame sync,
IDL and CGI. The W681512 is available in 20-pin
SOP and SSOP packaging.
For evaluation and prototyping purposes, a
development kit, the W681512DK, is available to
provide the system designer with a flexible
method for developing and testing an application
on a single, standalone platform.
8
Control
8
8
µ /A -
µ /A -
Cont
o
µ /A -
Cont
W681512 Signal Path
Control
µ /A
-
w
D/A
Converter
A/D
Converter
This document contains advance information and is subject to change.
Receive Path
f
f
High Pass
C
C
High
Pas Filt
= 200Hz
= 200
Hz
Filter
Transmit Path
Ant -
f
Ant
i
f
Smoothing
C
C
Smooth
ng Filter
= 3400Hz
= 3400Hz
Hz
= 3400
Hz
Filter
Filter
1
Filter
Filter
Filter
- Aliasi
Aliasing
ng
Ant - Aliasi
Ant - Aliasing
Smooth
Smoothing
ng F ilter
Filter
Filter
2
Filter
Filter
-
VA
G
V
AG
+
-
+
+ -
- +
+
-
PAO+
PAO
AI+
AI -
PAI
AO
RO +
RO -
-
Features
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Benefits
•
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CODEC Applications
•
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Development System
•
Single supply voltage: 4.5 - 5.5V
Typical power dissipation: 30mW, power-down of 0.5µW
Fully-differential analog circuit design
Differential outputs
On-chip precision reference voltage of 1.575V for a 0dBm TLP
@ 600Ω
Push-pull 300Ω power drivers with external gain adjust
8 kHz sample rate
Master clock rates: 256 kHz, 512 kHz, 1536 kHz, 1544 kHz,
2048 kHz, 2560 kHz and 4096 kHz
Pin-selectable µ-Law and A-Law companding (full compliance
with ITU-T G.711)
CODEC A/D and D/A filter compliance with ITU-T G.712
specifications
PCM interface: Short Frame Sync, Long Frame Sync, IDL and
GCI timing environments
Temperature range: Industrial grade (-40
Packaging: 20-pin SOP
Low power competitive solution
System level customization
Cross references with the Motorola
MC14LC5480
VoIP, Voice over Networks
PBX systems (gateways, switches)
PABX/SOHO systems
Local loop card
SOHO routers
Fiber-to-curb equipment
Enterprise phones
Digital telephone systems
ISDN equipment
Modems/PC cards
The W681512DK is a development kit that can be configured
in one of the following two modes:
o
o
Stand alone - capable of demo a loop back and
prototype a design on a dedicated board space
Back-to-Back –enables full system test between two
platforms
Preliminary Product Bulletin
MC145480 &
0
C to 85
0
C)
Related parts for W681512S
W681512S Summary of contents
Page 1
Winbond’s W681512 Single-Channel CODEC The W681512 single channel voice CODEC is an analog-to-digital and digital-to-analog converter that complies with ITU-T G.712 specifications. The CODEC features complete µ-Law and A-Law companders (pin selectable) that are designed to comply with ITU-T G.711 ...
Page 2
Re BCLKR BCLKR cei FSR ve PCMR Tra BCLKT BCLKT BCLKT ns FST mit PCMT Pre - scaler Pre - Scaler MCLK MCLK 256 kHz, 256 kHz, 512 kHz, 512 kHz, 1536 kHz, 1536 kHz, 1544 kHz, 1544 kHz, 2048 ...