AMBE2000 datasheet(36/47 Pages) ETC

36 / 47 page

AMBE-2000™ Vocoder Chip

User’s Manual Version 3.0

page 36

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Confidential Proprietary, Subject to Change

6.3

Low Level A/D–D/A Timing

Low Level Timing for A/D-D/A in Active and Passive Modes

Figure 6-A Low Level Timing for A/D-D/A in Active and Passive Modes

7/15

8/16

CODEC_TX_CLK

CODEC_TX_STRB

CODEC_TX_DATA

d(FSX)

h(FSX)H

w(SCK)

r(SCK)

f(SCK)

dis(DX)

h(DX)

w(SCK)

7/15

8/16

CODEC_RX_CLK

CODEC_RX_STRB

CODEC_RX_DATA

h(FSR)

su(FSR)

c(SCK)

w(SCK)

r(SCK)

f(SCK)

su(DR)

h(DR)

c(SCK)

h(FSX)

MSB

LSB

MSB

LSB

d(DX)

Table 6-B Switching Characteristics Over Recommended Operating Conditions

for Serial Port Receive

3.3 Volts

Reference

Parameter

Min

Max

Units

th(FSR)

Hold time, FSR after CLKR falling edge

th(DR)

Hold time, DR after CLKR falling edge

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