psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 19

• Manufacturer Part Number: psb21381
• Description: Siemens Codec With S/t Transceiver
• Manufacturer: Infineon Technologies Corporation

1.4
Table 1
Data Sheet
Pin No.
MQFP-44
31
16
36
27
30
17
37
26
34
21
22
25
24
23
1
3
Pin Definitions and Function
Pin No.
MQFP-64
46
25
55
42
45
26
57
56
41
49
31
32
35
34
33
8
1
7
3
Symbol
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
VDDSEL I
DD
DU
FSC
DCL
BCL
DDL
DDD
DDD1
DDD2
DDA
DDP
DDPLL
SSL
SSD
SSD1
SSD2
SSA
SSA2
SSA1
SSP
SSPLL
Input (I)
Output (O)
Open Drain
(OD)
–
–
–
–
–
–
–
–
–
–
I/OD/O
I/OD/O
I/O
I/O
O
9
Function
Power supply (3.3 V or 5 V
Supply voltage for line driver
Supply voltage for digital parts
Supply voltage for analog parts
Supply voltage for loudspeaker
Supply voltage for internal PLL
Ground for line driver
Ground for digital parts
Ground for analog parts
Ground for loudspeaker
Ground for internal PLL
VDD Selection
’0’: 3.3 V supply voltage
’1’: 5 V supply voltage
IOM-2 Interface
Data Downstream
Data Upstream
Frame Synchronization Clock (8 kHz)
Data Clock
I: single or double clock
O: double clock, 1.536 MHz
Bit Clock (768kHz)
(programmable)
PSB 21381/2
PSB 21383/4
2001-03-12
Overview
5 %)