AD1981HDJSTZ-REEL Analog Devices Inc, AD1981HDJSTZ-REEL Datasheet - Page 8

• Manufacturer Part Number: AD1981HDJSTZ-REEL
• Description: IC CODEC HD AUDIO 1.0 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97, HDr

Specifications of AD1981HDJSTZ-REEL

• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 4 / 2
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 2.97/4.5V
• Single Supply Voltage (max): 3.63/5.5V
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD1981HD
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 15. Pin Function Descriptions
Mnemonic
SDATA_OUT
BIT_CLK
SDATA_IN
SYNC
RESET#
Table 16. Digital Input/Output Pin Function Descriptions
Mnemonic
GPIO_2
GPIO_3
GPIO_0/JS_1
GPIO_1/JS_0
SENSE_A/SRC_B
SENSE_B/SRC_A
EAPD
S/PDIF_OUT
1
To reduce SENSE_A/B static current draw, connect a single 2.69 kΩ resistor between Pins 13 and 34. Remove the resistors from Pins 33 and 13 to AV
Pin No.
5
6
8
10
11
Pin No.
2
3
43
44
13
34
47
48
I/O
I
I
I/O
I
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
NC = NO CONNECT
SDATA_OUT
SDATA_IN
PC BEEP
BIT_CLK
GPIO_2
GPIO_3
RESET
SYNC
DV
DV
DV
DV
DD
DD
SS
SS
Description
General-Purpose Input/Output. Digital signal used to sense/control external circuits.
General-Purpose Input/Output. Digital signal used to sense/control external circuits.
GPIO_0—General-Purpose Input/Output. Digital signal used to sense/control external circuits.
JS_1—Classic (DC) Jack Sense for Headphone Out Pins. Low indicates that nothing is plugged
into the jack; high indicates that a peripheral is plugged into the jack.
GPIO_1—General-Purpose Input/Output. Digital signal used to sense/control external circuits
JS_0—Classic (DC) Jack Sense for Line Out Pins. Low indicates that nothing is plugged into the
jack; high indicates that a peripheral is plugged into the jack.
SENSE_A—Jack Sense A–D Input. For use with isolated switches on audio jacks.
SENSE_B—Jack Sense E–F Input. For use with isolated switches on audio jacks.
External Amplifier Power-Down Output.
S/PDIF Output.
10
11
12
Description
HD Audio Link Serial Data Output. Codec input stream.
HD Audio Link Bit Clock Input. 24 MHz.
HD Audio Link Serial Data Input. Codec output stream.
HD Audio Link Frame Sync.
HD Audio Link Reset. Master hardware reset.
1
2
3
4
5
6
7
8
9
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
PIN 1
Figure 3. Pin Configuration
AD1981HD
Rev. 0 | Page 8 of 16
(Not to Scale)
TOP VIEW
36
35
34
33
32
31
30
29
28
27
26
25
PORT-D_R
PORT-D_L
SENSE_B/SRC_A
NC
MIC_BIAS-D
NC
MIC_BIAS-F
MIC_BIAS-C
MIC_BIAS-B
VREF_FILT
AV
AV
SS
DD
1
DD
1
.