ad1985jstz-reel Analog Devices, Inc., ad1985jstz-reel Datasheet - Page 46

• Manufacturer Part Number: ad1985jstz-reel
• Description: Ac ?97 Soundmax Codec
• Manufacturer: Analog Devices, Inc.

AD1985
OR[1:0]
SR[5:0]
Codec ID and Clock Selection
XTL_IN
GND
GND
GND
XTAL
CLK Input
CLK Input
CLK Input
Note that internally, the ID pins have weak pull-ups and are inverted.
Note also that the clock detection is done per AC ’97 Rev. 2.3 specification.
Order Bits. These bits indicate the order of magnitude that the sense result Bits SR[5:0] are using. Default is 0x0.
00: 10
01: 10
10: 10
11: 10
For example, SR = 1, OR = 11; if measuring resistance, result is 1 kΩ.
Sense Result Bits. (Read-only, default 0.) These bits are used to report a vendor specific fingerprint or value. (Resistance,
impedance, reactance, etc.)
0
1
2
3
ID1
0
0
1
1
0
0
1
ID0
0
1
0
1
0
1
X
CODEC ID
Secondary, ID = 3
Secondary, ID = 2
Secondary, ID = 1
Primary, ID = 0
Primary, ID = 0
Primary, ID = 0
Reserved
Rev. A | Page 46 of 48
CODEC CLOCKING SOURCE
12.288 MHz (BIT_CLK from Primary Codec)
12.288 MHz (BIT_CLK from Primary Codec)
12.288 MHz (BIT_CLK from Primary Codec)
24.576 MHz (Local XTAL or External CLK into XTL_IN)
14.31818 MHZ (External into XTL_IN)
48.000 MHZ (External into XTL_IN)
Reserved