ml7037 Oki Semiconductor, ml7037 Datasheet - Page 25

• Manufacturer Part Number: ml7037
• Description: Ml7037-003 Dual Echo Canceler & Noise Canceler With Dual Codec For Hands-free
• Manufacturer: Oki Semiconductor

Not for Publication
PCM Interface
Note
*1 C
*2 MCK/XI=12.288MHz
*3 In internal clock mode (CLKSEL = logic “0’)
Timing Chart (PCM Interface)
OKI Semiconductor
Bit clock frequency
Bit clock duty ratio
Sync signal frequency
Sync signal duty ratio
Transmit/Receive Sync
signal timing
Input setup time
Input hold time
Digital output delay time
Digital output hold time
DVDD0,1=3.00V to 3.60V, AVDD=3.00V to 3.60V, DGND0,1=0.0V, AGND0,1=0.0V, Ta=-40°C to +85°C (otherwise specified)
DL
SYNC
(  -law PCM)
(16bit Linear PCM)
BCLK
PCMI
PCMI
=20pF
Parameter
t
S B
t
B S
1
MSB
MSB
t
W S
t
DS
2
Symbol
d
d
d
d
ｆ
ｆ
d
Figure 15 PCM Input Timing (Long Frame Sync)
ｆ
BCLK1
BCLK2
t
SYNC1
SYNC2
SYNC3
SYNC4
t
t
t
t
SYNC
BCLK
t
t
t
t
DH
SDX
XD1
XD2
XD3
DH
SB
BS
DS
3
µ-law PCM mode (*1, *2, *3)
16bit Linear PCM mode
(*1, *2, *3)
(*1, *2, *3)
(*1, *2, *3)
µ-law PCM mode (*1, *2, *3)
Long frame sync mode
(*1, *2, *3)
16bit Linear PCM mode
Long frame sync mode
(*1, *2, *3)
µ-law PCM mode (*1, *2, *3)
Short frame sync mode
(*1, *2, *3)
16bit Linear PCM mode
Short frame sync mode
(*1, *2, *3)
SYNC to BCLK
(*3)
BCLK to SYNC
(*3)
C
C
C
C
4
DL
DL
DL
DL
=50pF
=50pF
=50pF
=50pF
5
Condition
—
—
6
7
8
LSB
126.72
63.36
24.85
12.35
12.35
7.92
6.10
Min.
100
100
100
100
9
40
—
—
—
—
Typ.
12.5
12.5
6.25
128
8.0
64
50
25
—
—
—
—
—
—
—
—
PEDL7037-003-05Zz_Digest
16
LSB
129.28
64.64
25.15
12.65
12.65
Max.
8.08
6.40
100
100
100
100
17
60
—
—
—
—
ML7037-003
18
Unit
kHz
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%
50% VDD
50% VDD
50% VDD
50% VDD
25/41