IDTSTAC9753AXNAED1X IDT, Integrated Device Technology Inc, IDTSTAC9753AXNAED1X Datasheet - Page 22

• Manufacturer Part Number: IDTSTAC9753AXNAED1X
• Description: IC CODEC AC'97 MIC/JACK 32-QFN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9753AXNAED1X

• Resolution (bits): 20 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 92
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3.135V
• Single Supply Voltage (max): 3.465/5.25V
• Package Type: VFQFPN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9753AXNAED1X

IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
3.2.
STAC9752A/9753A Typical Connection Diagram for 32-pad QFN
LINK PINS
ANALOG I/O
FILTER PINS
STANDARD
Note:
Note: The CD_GND signal is an AC signal return for the two CD input channels. It is normally biased at about
Filter
EMI
TUNE TO LAYOUT
Figure 10. STAC9752A/9753A Typical Connection Diagram 32-pad QFN
*OPTIONAL
2.5V. The name of the pin in the AC’97 specification is CD_GND, and this has confused many
designers. It should not have any DC path to GND. Connecting the CD_GND signal directly to ground
will change the internal bias of the entire CODEC, and cause bad distortion. If there is no analog CD
input, then this pin can be No-Connect.
Pin 48: To Disable SPDIF, use an 1K - 1 0 K external pullup resistor.
1 µF*
820 pF
820 pF
22
27 pF
0.1 µF
10
11
12
25
7
8
2
3
20
21
5
22
9
1
AFILT1
AFILT2
XTL_IN
CAP2
PHONE
CD_L
CD_GND
CD_R
MONO_OUT
SDATA_OUT
SDATA_IN
SYNC
RESET#
BIT_CLK
17
AVss1
AVdd2
26
10 µF
AVss2
22
*OPTIONAL
2 *
29
in 32-pad QFN
(3.3V Analog)
STAC9753A
DVss1
4
Ferrite Bead
0.1 µF
DVss2
7
DVdd2
9
1 µF
STAC9752A/9753A
LINE_OUT_R
LINE_OUT_L
SPDIF_OUT
HP_OUT_L
HP_OUT_R
EAPD/GPIO
LINE_IN_R
LINE_IN_L
VREFOUT
0.1 µF
VREF
MIC1
MIC2
GPIO
3.3V ± 5%
plane as close to codec
Analog
Ground
*Terminate ground
13
14
19
18
15
16
23
24
30
31
32
27
28
as possible
Ground
Digital
1 µF
UNIVERSAL
PC AUDIO
GPIO PINS
SPDIF and
JACKS
VREF PINS
PINS
V 1.5 1206
TM