W681310SG Nuvoton Technology Corporation of America, W681310SG Datasheet - Page 30

• Manufacturer Part Number: W681310SG
• Description: IC VOICEBAND CODEC 3V 1CH 20SOP
• Manufacturer: Nuvoton Technology Corporation of America
• Type: PCMr

Specifications of W681310SG

• Data Interface: PCM Audio Interface
• Resolution (bits): 8 b
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: No
• Voltage - Supply, Analog: 2.7 V ~ 5.25 V
• Voltage - Supply, Digital: 2.7 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOP
• For Use With: W681360DK - KIT DEVELOPMENT FOR W681360
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TRANSFORMER
600 OHM 1:1
ELECTRET
MICROPHONE
+
SPEAKER
1.5K
600
1.0 uF
0.01 uF
27K
1.0 uF
1.0 uF
1.5K
Figure 11.4 Transformer Interface Circuit in GCI mode
0.01 uF
3.9K
0.1 uF
3.9K
0.1 uF
27K
22 uF
100pF
62K
Figure 11.3 Handset Interface
62k
27K
27K
27K
100pF
27K
27K
- 30 -
1K
17
18
19
20
1
2
3
4
5
17
18
19
20
1
2
3
4
5
U4
AO
AI-
AI+
VAG
VREF
RO-
PAI
PAO-
PAO+
W681310
U5
AO
AI-
AI+
VAG
VREF
RO-
PAI
PAO-
PAO+
W681310
VDD
VDD
BCLKR
BCLKT
PCMR
PCMT
MCLK
FSR
FST
BCLKR
PUI
BCLKT
u/A
PCMR
PCMT
MCLK
FSR
FST
PUI
u/A
0.1 uF
0.1 uF
14
12
13
11
8
9
7
16
10
14
12
13
11
8
9
7
16
10
POWER CONTROL
MODE SELECT
POWER CONTROL
8 KHz Frame Sy nc
MODE SELECT
8 KHz Frame Sy nc
B1/B2 SELECT
2.048 MHz
Bit Clock
PCM OUT
W681310
PCM IN
4.096 MHz
Bit Clock
PCM OUT
PCM IN