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AD1981A
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Technical/Catalog InformationAD1981AJST
VendorAnalog Devices Inc
CategoryIntegrated Circuits (ICs)
TypeAudio Codec '97
Number of ADCs / DACs4 / 2
Dynamic Range, ADCs / DACs (db) Typ85 / 90
S/N Ratio, ADCs / DACs (db) Typ-
Resolution (Bits)16, 20 b
Voltage - Supply, Analog4.65 V ~ 5.25 V
Voltage - Supply, Digital3.15 V ~ 3.45 V
Mounting TypeSurface Mount
Package / Case48-LQFP
PackagingTray
Operating Temperature0°C ~ 70°C
Sigma DeltaNo
InterfaceSerial
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names AD1981AJST
AD1981AJST

Product Manufacturers Pack D/C
AD1981A Analog Devices TQFP-48 0318+

Features
·S/PDIF Output, 20 Bits Data Format, Supporting·48 kHz and 44.1 kHz Sample Rates·Integrated Stereo Headphone Amplifier·Variable Sample Rate Audio·External Audio Power-Down Control·Greater than 90 dB Dynamic Range·16-Bit Stereo Full-Duplex Codec·20-Bit DAC Input·Three Analog Line-Level Stereo Inputs for·LINE-IN, AUX, and CD·Mono Line-Level Phone Input·Mono MIC Input with Built-In Programmable Preamp·High Quality CD Input with Ground Sense·Mono Output for Speakerphone or Internal Speaker·Power Management Support·48-Lead LQFP Package

Maximum Ratings

(TA = 25°C unless otherwise noted.)
Power Supplies
Digital (DVDD) . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +3.6 V
Analog (AVDD) . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6.0 V
Input Current (except Supply Pins) . . . . . . . . . . . . . . ±10 mA
Signals Pins
Digital Input Voltage . . . . . . . . . . . . . 0.3 V to DVDD +0.3 V
Analog Input Voltage . . . . . . . . . . . .  0.3 V to AVDD +0.3 V
Ambient Temperature Range (Operating) . . . . 0°C to 70°C

Supplier

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  Part Number Mfg Pack D/C Qty Note
AD1981A AD TQFP 06+ 367 new part
  LATTICE INTERNATIONAL TRADING CO,.LTD China (Mainland)
Contact: Mr. Chan   MSN:lattice-ic@hotmail.com Tel: 86-755-83237896 Fax: 86-755-61309212
AD1981A AD QFP 10+ 385
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
AD1981A AD LQFP 186
  NamFung Groups(HK) Electronics Limited Hong Kong
Contact: Mr. Andy Wong   MSN:namfung808@hotmail.com Tel: 86-755-33061456/33062456 Fax: 86-755-33062567
AD1981A AD QFP 1592
  Multiwin Group Ltd China (Mainland)
Contact: Mr. Steve   MSN:steve-multiwin@hotmail.com Tel: 86-755-82572580 Fax: 86-755-82501983
AD1981A AD PQFP 5000 New and original sample can be provided
  UNION TECHNOLOGY (HK) TRADING COMPANY LIMITED China (Mainland)
Contact: Mr. Kevin   MSN:union-hk@live.com Tel: 0086-755-82813231/ 82813232 Fax: 0086-755-82813230
AD1981A AD QFP N/A 77
  AllPurpose Electronics Co.,Ltd China (Mainland)
Contact: Mr. Sandi   MSN:ap-ec@hotmail.com Tel: 86-0754-84496014 Fax: 86-0754-84496014
AD1981A AD QFP 584
  HONGKONG XUMEI ELECTRONICS CO. LIMITED China (Mainland)
Contact: Mr. Kate Fan   MSN:xumeidz002@hotmail.com Tel: 86-755-83267283 Fax: 86-755-83266796
AD1981A AD 3000
  Histar International Electronics Co.,Limited China (Mainland)
Contact: Mr. Phobe Zou   MSN:histarelectronics01@hotmail.com Tel: 86-755-23043192 Fax: 86-755-28234554
AD1981A AD QFP 172 in stock
  Boer Electronics United States
Contact: Ms. Vicky   MSN:sales3@boer-ic.com Tel: 1-510-488-4798 Fax: 1-510-675-9802
AD1981A AD N/A O3 269
  JinYang Electronics Technology International Co., Ltd China (Mainland)
Contact: Ms. Yoyo   MSN:jinyangelectronics@hotmail.com Tel: 0086-755-83686420 Fax: 0086-755-83275511
AD1981A ANALOG DEV 09+ 250 new and original
  shenzhen changhongda electronic co.,LTD China (Mainland)
Contact: Ms. Elinda   MSN:victoryae@hotmail.com Tel: 86-755-15999874459 Fax: 86-755-29475559
AD1981A 1500 NEW&ORIGINAL
  HK Dasing Int'l Tech Development Limited China (Mainland)
Contact: Ms. Sue ouyang   MSN:ds168@live.cn Tel: 86-755-83995728 Fax: 86-755-83995418
AD1981A AD PQFP 5000 New and original sample can be provided
  SILICON TECHNOLOGY(HONGKONG)ELECTRONIC LIMITED China (Mainland)
Contact: Mr. chen   MSN:siliconic@hotmail.com Tel: 86-755-83000558 Fax: 86-755-83000758
AD1981A AD N/A 09+ 186
  Universal Technical Components Limited China (Mainland)
Contact: Ms. Amy   MSN:amy-840308@hotmail.com Tel: 0086-027-83083551 Fax: 0086-027-83083551
AD1981A QFP 910
  Wisher Tech (HK) Co., Ltd China (Mainland)
Contact: Mr. David Wu   MSN:wuchengfu711022@msn.cn Tel: +86-0755-27570452 Fax: +86-0755-27570452
AD1981A N/A N/A N/A 15128 New & original, stock offer
  TONGGUANG (H.K.) ELECTRICS CO., LIMITED China (Mainland)
Contact: Mr. james   MSN:james_123lin@hotmail.com,SKYPE:wondle Tel: +86-755-23932235 Fax: +86-755-83996795
AD1981A AD QFP 02+ 13 SUNON'S STOCK
  SUNON(HK) SEMICON CO.,LTD Hong Kong
Contact: Mr. Rick Lin   MSN:sun789@msn.cn Tel: 86-755-82811600 Fax: 86-755-83985387
AD1981A AD QFP 05+ 1000
  HORU ELECTRONIC TECHNOLOGY (HK) CO.,LIMITED Hong Kong
Contact: Ms. Lucy   MSN:horu002@live.cn Tel: 00852-6525-9159 Fax: 00852-6635-8325
AD1981A 3000
  HK HUAYI TRADE DEVELOPMENT LIMITED China (Mainland)
Contact: Ms. Julia   MSN:huayi-01@hotmail.com Tel: 86-0755-83259720/83980925 Fax: 86-0755-83259730
AD1981A AD QFP 0221+ 77
  BOSHILI ELECTRONICS CO.,LTD China (Mainland)
Contact: Ms. Tina Sun   MSN:boshili08@hotmail.com Tel: 86-755-83536612 Fax: 86-755-83510941
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