AD1980 Analog Devices, AD1980 Datasheet - Page 5

• Manufacturer Part Number: AD1980
• Description: AD1980 AC'97 SoundMAX® Codec W/spdif W/eq
• Manufacturer: Analog Devices

REV. 0
BIT_CLK
SYNC
SDATA_OUT
SDATA_IN
BIT_CLK
Figure 4. Signal Rise and Fall Times
SYNC
t
t
RISEDOUT
RISESYNC
t
t
RISECLK
t
t
Figure 3. Clock Timing
RISEDIN
SYNC_HIGH
CLK_HIGH
t
CLK_PERIOD
Figure 1. Cold Reset Timing (Codec is Supplying the Bit_CLK Signal)
SDATA_IN
BIT_CLK
RESET
BIT_CLK
t
SYNC_PERIOD
t
SYNC
CLK_LOW
t
SYNC_LOW
t
t
t
t
FALLDOUT
FALLSYNC
FALLCLK
FALLDIN
Figure 2. Warm Reset Timing
t
RST_LOW
t
SYNC_HIGH
–5–
t
t
TRI2ACTV
TRI2ACTV
SDATA_O
SDATA_I
t
SYNC2CLK
BIT_CL
t
RST2CLK
SYN
Figure 5. AC-Link Low Power Mode Timing
Figure 6. AC-Link Low Power Mode Timing
SDATA_OUT
SDATA_IN, BIT_CLK,
SDATA_IN
EAPD, SPDIF_OUT
BIT_CLK
BIT_CLK NOT TO SCALE
AND DIGITAL I/O
V
IH
SYNC
SDATA_OUT
Figure 7. ATE Test Mode
t
WRITE TO
CO
RESET
SLOT 1
0 26
t
V
V
HOLD
OL
OH
t
SETUP
SLOT 2
DATA
PR4
V
IL
t
OFF
t
SETUP2RST
t
S2_PDOWN
AD1980
Hi-Z