IDTSTAC9753AXNAED1XR IDT, Integrated Device Technology Inc, IDTSTAC9753AXNAED1XR Datasheet - Page 92

• Manufacturer Part Number: IDTSTAC9753AXNAED1XR
• Description: IC CODEC AC'97 MIC/JACK 32-QFN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec '97r

Specifications of IDTSTAC9753AXNAED1XR

• 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: STAC9753AXNAED1XR

IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
11.3. Pin Description for the 32-pad QFN Package
Pin 32: To Disable SPDIF, use an 1K - 1 0 K external pullup resistor.
Pin 11: The CD_GND signal is an AC signal return for the two CD input channels. It is normally
biased at about 2.5V. The name of the pin in the AC’97 specification is CD_GND, and this has con-
fused 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 significant distortion.
If there is no analog CD input, then this pin can be No-Connect.
EAPD/GPIO4
MONO_OUT
SPDIF-OUT
Figure 25. STAC9752A/9753A 32 pad QFN Pin Description Drawing
AVDD2
GPIO3
AVSS
HP_R
HP_L
25
26
27
28
29
30
31
32
32 pad QFN
92
16 LINE_IN_R
15 LINE_IN_L
14 MIC 2
13 MIC 1
12 CD_R
11 CD_GND
10
9 PHONE
CD_L
STAC9752A/9753A
PC AUDIO
V 1.5 1206