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AD6458
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AD6458 - new -

Pinout/Connection Diagram

 

General Description

The AD6458 is a 3 V, low power receiver IF subsystem for operation at input frequencies as high as 400 MHz and IFs from 5 MHz up to 50 MHz. It is optimized for operation in GSM, DCS1800 and PCS1900 receivers. It consists of a mixer, IF amplifier, I and Q demodulators, a phase-locked quadrature oscillator, precise AGC subsystem, and a biasing system with external power-down.

The low noise, high intercept mixer of the AD6458 is a doubly-balanced Gilbert cell type. It has a nominal (R)C12 dB
input-referred 1 dB compression point and a (R)C2 dBm input referred third-order intercept. The mixer section of the AD6458 also includes a local oscillator (LO) preamplifier, which lowers the required LO drive to (R)C16 dBm

The gain control input accepts an external gain-control voltage input from an external AGC detector or a DAC. It provides an 80 dB gain range with 27 mV/dB gain scaling.

The I and Q demodulators provide inphase and quadrature baseband outputs to interface with Analog Devices°O AD701 (IS54, TETRA, MSAT) and AD7015 and AD6421 (GSM, DCS1800, PCS1900) baseband converters. An onboard quadrature VCO which is externally phase-locked to the IF signal drives the I and Q demodulators. This locked reference signal is normally provided by an external VCTCXO under the control of the radio°Os digital processor. The AD6458 can als provide demodulation of N-PSK and N-QAM in many non-TDMA systems when used with external analog carrier recovery systems such as the Costas Loop. Finally, the VCO can be phase-locked to a frequency which is deliberately offset from the IF, as in the case of a Beat-Frequency Oscillator (BFO), result-ing in the product detection of CW or SSB.

The AD6458 uses supply voltages from 3.0 V to 3.6 V over the temperature range of -40 to +85. Operation is enabled by a CMOS logical level; response time is typically <80

Features
Fully Compliant with Standard and Enhanced GSM Specification -12 dBm Input 1 dB Compression Poin -2 dBm Input Third Order Intercep 10 dB SSB Noise Figure (330 ) DC(R)C400 MHz RF and LO BandwidthLinear IF Amplifier Linear-in-dB and Stable over Temperature VoltageGain ControlQuadrature Demodulator Onboard Phase-Locked Quadrature Oscillator Demodulates IFs from 5 MHz to 50 MHzLow Power 9 mA at Midgain 1 A Sleep Mode Operation 3.0 V to 3.6 V OperationInterfaces to AD7013, AD7015 and AD6421 Baseband Converters20-Lead SSOP

Maximum Ratings

Supply Voltage VPS1, VPS2 to COM1, COM2 . . . . ........ +3.6 V
Internal Power Dissipation2 . . . . . . . . . . . . . . . . . . . . 600 mW
Operating Temperature Range . . . . . . . . . . ....-40 to +85
Storage Temperature Range . . . . . . . . . . . . .-65 to +150
Lead Temperature, Soldering (60 sec) . . . . . . . . . . . ...+300

Supplier

Select all
  Part Number Mfg Pack D/C Qty Note
AD6458 TOSHIBA SOP 02+ 500
  ANTECH ENTERPRISE LIMITED China (Mainland)
Contact: Ms. Christina Cheung   MSN:christina-cheung@hotmail.com Tel: 86-0755-82767565 Fax: 86-0755-23816815
AD6458 TOSHIBA SOP 500 02+
  Edian Electronics Company China (Mainland)
Contact: Ms. cheung trammy   MSN:focosales@hotmail.com Tel: 86-755-82521939,23815519,83230734 Fax: 86-755-23815519
AD6458 ADI N/A 09+ 1353 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
AD6458 98+ 22596 szwinsome@Hotmail.com
  Winsome Holding (HK) Group Company Limited Hong Kong
Contact: Mr. Ho   MSN:hkwinsome@hotmail.com Tel: +86-755-82807955 Fax: +86-755-83234025
AD6458 98+ 22596 New original IN STOCK
  HK Kingrav Electronic Company China (Mainland)
Contact: Ms. Yang   MSN:helen@kingrav.com Tel: 86-755-82541122 Fax: 86-755-82541522
AD6458 2013
  Pulison Technology Co., Ltd China (Mainland)
Contact: Mr. Leo   MSN:sales002@pulison.com Tel: 86-755-27708187 Fax: 86-755-23441200
AD6458 AD SMD 98+ 22596
  overseas electronics group limited China (Mainland)
Contact: Mr. Bright   MSN:ichkoec@hotmail.com Tel: 86-755-83258502 Fax: 86-755-83258503
AD6458 AD SOP 0612+ 398
  Antech Electronic ( HK ) CO.,Limited China (Mainland)
Contact: Ms. Handy Chen   MSN:antech-sales1@hotmail.com Tel: 86-0755-82725725 Fax: 86-0755-82725726
AD6458 AD 50
  Shenzhen DaHe Electronics Co.,Ltd China (Mainland)
Contact: Ms. Sarah zhang   MSN:dahedz@vip.163.com Tel: 0086-755-83013000 Fax: 0086-755-83013884
AD6458667 5200
  Hongkong Micyoic Electronics Co.,Ltd China (Mainland)
Contact: Ms. Long   MSN:misslong@live.cn Tel: 86-755-82510446/83354110/82516279 Fax: 86-755-83354081
AD6458AR AD 5789
  3E-ELEC(HK)Co. Ltd China (Mainland)
Contact: Ms. Selina Zhang   MSN:3e06@3e-elec.com Tel: 86-755-33063502 Fax: 86-755-33063509
AD6458ARS ADI SSOP 204 Professional IC Supplier in China
  RANTLE EAST ELECTRONIC TRADING CO China (Mainland)
Contact: Ms. Jessica Wong   MSN:rantle-east@hotmail.com Tel: 86-754-84475086 Fax: 86-754-84471197
AD6458ARS AD SMD 3385
  Mingar Electronic (HK) Limited China (Mainland)
Contact: Ms. Kaisy   MSN:mingar.hk@gmail.com Tel: 86-755-82767182 Fax: 86-755-82767423
AD6458ARS AD 3385 Real Stock . We are STRC member.
  Win Source Electronic Technology Limited Hong Kong
Contact: Ms. Amanda   MSN:winsource3@hotmail.com Tel: 86-755-83566469 Fax: 86-755-83957728
AD6458ARS AD SSOP 837
  AIBOSI ELECTRONIC (HK) CO., LIMITED China (Mainland)
Contact: Ms. liuhongyun   MSN:aibosi02@hotmail.com Tel: +86-755-23806752 Fax: +86-755-82719183
AD6458ARS AD SSOP 08+ 1300
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
AD6458ARS AD SSOP 250
  Golden Source Electronics Intl Limited China (Mainland)
Contact: Ms. sara   MSN:incomponent@hotmail.com Tel: 86-0755-83005325 Fax: 86-0755-83005322
AD6458ARS AD SSOP 08+ 4467
  SANHUI (HK) ELECTRONICS China (Mainland)
Contact: Ms. Simmy   MSN:simmy-sales@hotmail.com Tel: 86-755-83674455 Fax: 86-755-83690789
AD6458ARS AD 5789
  3E-ELEC(HK)Co. Ltd China (Mainland)
Contact: Ms. Selina Zhang   MSN:3e06@3e-elec.com Tel: 86-755-33063502 Fax: 86-755-33063509
AD6458ARS AD SSOP 06+ 5550
  Zhengxinyuan ELectronics(HongKong)Co.LTD  China (Mainland)
Contact: Ms. Marco yuan   MSN:marco@zxy-ic.com Tel: 086-0755-88822655 Fax: 086-0755-88860655
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AD6458

File Size: 276982 KB
Manufacturer: AD [Analog Devices]

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