MSM7731-02 OKI [OKI electronic componets], MSM7731-02 Datasheet - Page 16

• Manufacturer Part Number: MSM7731-02
• Description: Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free
• Manufacturer: OKI [OKI electronic componets]

Digital Interface Characteristics (1/3)
PDN/RST Timing
PDN/RST set timing
Control Timing (*2)
Note*2: Applies to the following pins/control bits:
1 Semiconductor
Power-down/Reset Signal
Pulse Width
Power-down/Reset Start
Time
Power down/Reset End Time
Power-down/Reset Internal
Setting Time
Control Pulse Width
Control Start Time
Control End Time
Pin/control bit
Internal operation
SYNC (Ext. clock)
BCLK (Ext. clock)
PDN/RST control bit
PDN/RST pin
PDN/RST control bit
Internal Operation
PCMO, PCMEO
Parameter
LINEEN, SLPTHR, NCTHR, GLPADTHR, TPAD6-1, RPAD6-1, RST, ATHR, AATT, AHLD,
AHD, AGC, LTHR, LATT, LHLD, LHD, LGC pins, and control bits.
Symbol
t
t
t
t
t
t
t
RSTW
PARW
PDND
PDNH
PDNS
PARD
PARH
PDN/RST pin
PDN/RST control bit
PDN/RST pin and
PDN/RST control bit
PDN/RST pin and
PDN/RST control bit
SYNC pin (input mode)
(*2)
Condition
t
PDND
Internal processing
T
t
PARD
RSTW
t
PDNS
t
Power Down
PARW
(V
Min.
140
250
1.6
—
—
—
—
1
DD
= 2.7 to 3.6 V, Ta = –25 to +85°C)
Hi-Z
t
PDNH
Typ.
—
—
—
—
—
—
—
: Crystal activation
t
PARH
200+
Max.
180
250
250
FEDL7731-02-04
50
(Internal Write)
—
—
Initial Mode
MSM7731-02
Unit
mS
µS
nS
µS
µS
µS
µS
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