PEB2466 SIEMENS [Siemens Semiconductor Group], PEB2466 Datasheet - Page 10

• Manufacturer Part Number: PEB2466
• Description: Four Channel Codec Filter with PCM- and m-Controller Interface SICOFI4-mC
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Semiconductor Group
1.3
Pin No. Symbol
Common Pins for all Channels
24
21
52
61
56
57
31
32
30
29
28
27
26
Pin Definition and Functions
V
GNDD
V
V
V
V
FSC
PCLK
DRB
DXB
TCB
DRA
DXA
DDD
DDA12
DDA34
REF
DDREF
Input (I)
Output (O)
I
I
I
I
I/O
I
I
I
I
O
O
I
O
Function
+ 5 V supply for the digital circuitry
Ground Digital, not internally connected to
GNDA1,2,3,4
All digital signals are referred to this pin
+ 5 V Analog supply voltage for channel 1 and 2
+ 5 V Analog supply voltage for channel 3 and 4
Reference voltage, has to be connected to a 220 nF
cap. to ground, can also be used as virtual ground
for analog inputs and outputs (high-ohmic buffer
needed !!!)
+ 5 V Analog supply voltage (100 nF cap. required)
Frame synchronization clock, 8 kHz, identifies the
beginning of the frame, individual time slots are
referenced to this pin, FSC must be synchronous to
PCLK
Data clock 128 to 8192 kHz, determines the rate at
which PCM data is shifted into or out of the
PCM-ports
PCM-interface: Receive PCM data from
PCM-highway B, data for each channel is received
in 8 bit bursts every 125 s
PCM-interface: Transmit PCM data to PCM-highway
B, data for each channel is transmitted in 8 bit burst
every 125 s
PCM-interface: Transmit control output B, is active if
data is transmitted via DXB, active low, open drain
PCM-interface: Receive PCM data from
PCM-highway A, data for each channel is received
in 8 bit bursts every 125 s
PCM-interface: Transmit PCM data to PCM-highway
A, data for each channel is transmitted in 8 bit burst
every 125 s
10
General Description
1)
PEB 2466
02.97
1)
1)