IDTSTAC9251H5TAEA1XR IDT, Integrated Device Technology Inc, IDTSTAC9251H5TAEA1XR Datasheet - Page 9

• Manufacturer Part Number: IDTSTAC9251H5TAEA1XR
• Description: IC AUDIO CODEC 2CH HD 5V 48-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec, HDr

Specifications of IDTSTAC9251H5TAEA1XR

• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 89 / 100
• Dynamic Range, Adcs / Dacs (db) Typ: 88 / 99
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 3.8 V ~ 4.2 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9251H5TAEA1XR

1. DESCRIPTION
IDT™
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
STAC9250/9251
TWO-CHANNEL HD AUDIO CODEC WITH MODEM & DUAL DIGITAL MICROPHONE INTERFACES
1.1.
1.2.
1. Modem functionality can only be used with a “Line Side” DAA integrated circuit, Si3080 or similar, available from Silicon Labs
(www.silabs.com).
Overview
Features
The STAC9250/9251 are high fidelity, 2-channel audio CODECs compliant with the High Definition
Audio (HD Audio) specification defined by Intel. The STAC9250/9251 enables a two-chip audio and
modem implementation by integrating the “System Side” functionality of Silicon Labs’ modem solu-
tion. The STAC9250/9251 provides a direct interface to Silicon Labs’ “Line Side” integrated circuit.
This integration results in cost savings without sacrificing audio fidelity or modem functionality. The
STAC9251 also implements a direct interface to two digital microphones supporting advanced beam
forming applications resulting in increased quality of voice applications.
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High-integration HD Audio Product
• 2-channel PC Audio CODEC
• Modem “System-side” functionality
• Dual Digital Microphone interface (STAC9251)
Two-Channel DACs and ADCs with 24-bit sample resolution
• High performance ΣΔ technology
• Sample rates up to 192 KHz
• 100dB DAC SNR
Integrated modem functionality from Silicon Labs
• Interfaces directly to Line Side integrated circuit from Silicon Labs
• Supports two-chip audio plus modem functionality
• Supports software modem implementations from Motorola and others compatible with the Sili-
• Supports motherboard implementations eliminating MDC card and connector costs
• Reduced board space
• Reduced external component count
Integrated Headphone Amps
Stereo Analog Microphone
• Supports Stereo Microphone
• Microphone Boost 0, 10, 20, 30, 40dB
Dual Digital Microphone Interface optimized for use with Akustica Digital Microphones.
(STAC9251 only)
S/PDIF In and Out
Universal Jacks™ Functionality for jack retasking
Adjustable VREF Out
Digital PC Beep to all outputs
48-pin LQFP Environmental Package
con Labs chipset
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supports reduced BOM costs
STAC9250/9251
PC AUDIO
V 1.2 01/08