821054PQF Integrated Device Technology (Idt), 821054PQF Datasheet - Page 42

• Manufacturer Part Number: 821054PQF
• Description: Audio Codec 4ADC / 4DAC 64-Pin PQFP
• Manufacturer: Integrated Device Technology (Idt)
• Type: PCMr

Specifications of 821054PQF

• Package: 64PQFP
• Number Of Channels: 4ADC /4 DAC
• Number Of Dacs: 4
• Operating Supply Voltage: 5 V

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
8.3
Symbol
t21
t22
t23
t24
t25
t26
t27
t28
t29
TSX1 /
Time Slot
FS
DR1/DR2
TSX1 / TSX2
DX1/DX2
DR1/
DX1/
TSX2
BCLK
DR2
Note: This timing diagram only applies to the situation of receiving data on falling edges and transmitting data on rising edges.
DX2
FS
PCM INTERFACE TIMING
27
Data enable delay time
Data delay time from BCLK
Data float delay time
Frame sync setup time
Frame sync hold time
TSX1 or TSX2 enable delay time
TSX1 or TSX2 disable delay time
Receive data setup time
Receive data hold time
28
29
30
31
Description
0
1
2
3
Figure - 12 Typical Frame Sync Timing (2 MHz Operation)
4
X0
t24
5
1
BIT
Figure - 11 Transmit and Receive Timing
1
R0
BIT 1
6
t21
t25
t26
7
2
X1
Min.
8
BIT
25
50
25
5
5
5
5
5
5
2
BIT 2
t28
R1
9
10
3
42
BIT
Typ.
3
11
BIT 3
12
13
4
Time Slot
BIT
t4 − 50
4
Max.
BIT 4
14
70
70
70
80
80
t22
X2
15
5
16
R2
BIT
5
BIT 5
Units
17
ns
ns
ns
ns
ns
ns
ns
ns
ns
t29
18
6
BIT
6
INDUSTRIAL TEMPERATURE RANGE
19
BIT 6
20
7
21
BIT
7
BIT 7
22
Test Conditions
23
X3
8
t27
BIT
8
R3
24
BIT 8
t23
25
26
1