IDTSTAC9753AXNAED1XR IDT, Integrated Device Technology Inc, IDTSTAC9753AXNAED1XR Datasheet - Page 95

• 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
11.7. STAC9752A/9753A Filter/References
1. ^ any unused input pins should be tied together and connected through a capacitor (0.1 µF sug-
2. * Universal Jack™ capable. Only pins 35/36 OR 39/41 may be used to drive headphones. It is
3. The CD_GND signal is an AC signal return for the two CD input channels. It is normally biased
These signals are connected to resistors, capacitors, or specific voltages.
Signal Name
MONO_OUT
HP_OUT_L*
HP_OUT_R
VREFOUT
Pin Name
VREF IN
AFILT0
AFILT1
gested) to ground, except the MIC inputs which should have their own capacitor to ground if not
used.
not possible to drive 2 sets of headphones at the same time.
at about 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 significant distor-
tion. If there is no analog CD input, then this pin can be No-Connect.
CAP2
48 LQFP
48 LQFP
Table 36. STAC9752A/9753A Analog Connection Signals (Continued)
Pin #
Pin #
27
28
29
30
32
37
39
41
Table 37. STAC9752A/9753A Filtering and Voltage References
32 QFN
32 QFN
Pin #
Pin #
18
19
20
21
20
25
27
28
Type
Type
O
O
O
O
O
O*
O*
O
95
Analog ground
Reference Voltage out 5mA drive
Anti-Aliasign FIlter Cap - ADC Right Channel
Anti-Aliasign FIlter Cap - ADC Left Channel
ADC reference Cap
To telephony subsystem speakerphone
Headphone Out Left Channel
Headphone Out Right Channel
Description
Description
STAC9752A/9753A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Internal Pull-up
Internal Pull-up
/Pull-down
/Pull-down
PC AUDIO
V 1.5 1206