STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
IDT™
12 STAC9752/9753
REV 3.3 1206
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
2.1.4. AC-Link Static Digital Specifications
(T
ambient
= 25 ºC, DVdd = 3.3V ± 5%, AVss=DVss=0V)
Note: Due to an internal pulldown resistor, the BIT_CLK pin will exhibit less than 100 µA of leakage current
when the CODEC is configured as primary. This pin meets the +/- 10 µA leakage specification when
configured as secondary.
2.1.5. STAC9752 5 V Analog Performance Characteristics
(T
ambient
= 25 ºC, AVdd = 5.0 V ± 5%, DVdd = 3.3 V ± 5%, AVss=DVss=0 V; 1 KHz input sine wave;
Sample Frequency = 48 KHz; 0 dB = 1 Vrms, with a 10 KΩ, 50 pF load, Testbench Characterization
BW: 20 Hz to 20 KHz, 0 dB settings on all gain stages)
Parameter Symbol Min Typ Max Unit
Input voltage range Vin -0.30 - DVdd + 0.30 V
Low level input range Vil - - 0.35 x DVdd V
High level input voltage Vih 0.65 x DVdd - - V
High level output voltage Voh 0.90 x DVdd - - V
Low level output voltage Vol - - 0.1 x DVdd V
Input leakage current (AC-Link inputs) - -10 - 10 µA
Output leakage current (Hi-Z AC-Link outputs) - -10 - 10 µA
BIT_CLK (primary mode) Output leakage current - -10 - 100 µA
BIT_CLK (secondary mode) Output leakage current - -10 - 10 µA
Output buffer drive current - - 4 - mA
BIT_CLK/SPDIF Output drive current - - 18 - mA
Parameter Min Typ Max Unit
Full Scale Input Voltage:
All Analog Inputs except Microphone - 1.00 - Vrms
Microphone Inputs (Note 1) - 0.03 - Vrms
Full Scale Output:
Line Output - 1.00 - Vrms
PCM (DAC) to LINE_OUT - 1.00 - Vrms
MONO_OUT - 1.00 - Vrms
HEADPHONE_OUT (32 Ω load) per channel (peak) - 50 - mW
Dynamic Range: -60dB signal level (Note 2)
CD to LINE_OUT - 90 - dB
LINE / AUX / VIDEO to LINE_OUT - 90 - dB
PCM (DAC) to LINE_OUT 80 87 - dB
PCM (DAC) in BYPASS Mode to LINE_OUT - 88 - dB
LINE_IN to A/D (1 VRMS Input Referenced) 80 90 - dB
LINE_IN to HEADPHONE_OUT - 90 - dB
Analog Frequency Response (Note 3) 10 - 30,000 Hz
Total Harmonic Distortion + Noise (-3dB): (Note 4)
CD to LINE_OUT - -85 - dB
Other to LINE_OUT - -87 - dB
PCM (DAC) to LINE_OUT (full scale) - -83 - dB
PCM (DAC) in BYPASS Mode to LINE_OUT - -86 - dB
LINE_IN to A/D (-3dBV input Level) - -85 - dB