STAC9752 datasheet(12/95 Pages) IDT

12 / 95 page

STAC9752/9753

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

IDT™

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

(Tambient = 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

(Tambient = 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 K

Ω, 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

Low level input range

Vil

0.35 x DVdd

High level input voltage

Vih

0.65 x DVdd

High level output voltage

Voh

0.90 x DVdd

Low level output voltage

Vol

0.1 x DVdd

Input leakage current (AC-Link inputs)

-10

µA

Output leakage current (Hi-Z AC-Link outputs)

-10

µA

BIT_CLK (primary mode) Output leakage current

-10

100

µA

BIT_CLK (secondary mode) Output leakage current

-10

µA

Output buffer drive current

BIT_CLK/SPDIF Output drive current

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)

Dynamic Range: -60dB signal level (Note 2)

CD to LINE_OUT

LINE / AUX / VIDEO to LINE_OUT

PCM (DAC) to LINE_OUT

PCM (DAC) in BYPASS Mode to LINE_OUT

LINE_IN to A/D (1 VRMS Input Referenced)

LINE_IN to HEADPHONE_OUT

Analog Frequency Response (Note 3)

30,000

Total Harmonic Distortion + Noise (-3dB): (Note 4)

CD to LINE_OUT

-85

Other to LINE_OUT

-87

PCM (DAC) to LINE_OUT (full scale)

-83

PCM (DAC) in BYPASS Mode to LINE_OUT

-86

LINE_IN to A/D (-3dBV input Level)

-85

STAC9752 Datasheet(PDF) 12 Page - Integrated Device Technology

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