psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 21
psb21391
Manufacturer Part Number
psb21391
Description
Siemens Codec With Upn Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21391.pdf
(253 pages)
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Part Number:
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Table 1
Pin No. Symbol
Data Sheet
38
39
40
44
43
42
41
28
29
5
6
2
4
V
BGREF
AXI
MIP1
MIN1
MIP2
MIN2
HOP
HON
LSP
LSN
reserved
reserved
REF
Input (I)
Output (O)
Open Drain
(OD)
O
I/O
I
I
I
I
I
O
O
O
O
I
I
Function
Analog Frontend
2.4V Reference voltage for biasing external
circuitry.
An external capacity of
connected.
Reference Bandgap voltage for internal
references.
An external capacity of
connected.
Single-ended Auxiliary Input
Symmetrical differential Microphone Input 1
Symmetrical differential Microphone Input 2
Differential Handset earpiece output for
200
Differential Loudspeaker output for 50
25
5 V or 3.3 V respectively
Reserved Pins
This input is not used for normal operation
and must be connected to VDD.
This input is not used for normal operation
and must be connected to VSS.
loudspeaker using a power supply of
transducers
11
100nF has to be
22nF has to be
PSB 21391
PSB 21393
or
2001-03-07
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