Select site:
- English
SA58646
Datasheet
General description
The SA58646 is a BiCMOS integrated circuit that performs all functions from the antenna to the microcontroller for reception and transmission for both the base station and the handset in a 902 MHz to 928 MHz full-duplex radio. The SA58646 may be used in a UHF push-to-talk walkie-talkie or in a UHF to 900 MHz data transceiver. The SA58646 is a pin-compatible derivative of the UAA3515 with advanced features.
This IC integrates most of the functions required for a half-duplex or full-duplex radio in a single integrated circuit. Additionally, the programmability implemented reduces significantly external components count, board space requirements and external adjustments.
Features
- RF RX (single frequency conversion FM receiver):
- Integrated LNA
- Image reject mixer
- FM detector at 10.7 MHz including an IF limiter, a wide band PLL demodulator, an output amplifier and a RSSI output
- Carrier detection with programmable threshold
- Programmable data amplifier (slicer) phase
- Synthesizer:
- Crystal reference oscillator with integrated tuning capacitor
- Reference frequency divider
- Narrow band RX PLL including RX VCO with integrated varicaps
- Narrow band TX PLL including TX VCO with integrated varicaps
- VCO external inductors can be done with printed transmission lines on the PCB which offers substantial savings
- Programmable clock divider with output buffer to drive a microcontroller
- Baseband RX section:
- Programmable RX gain (enable phone volume control)
- Expander with output noise level control
- Earpiece amplifier with volume control feature
- Data amplifier
- Baseband TX section:
- Microphone amplifier
- Compressor with automatic level control and hard limiter
- Programmable TX gain
- Microcontroller interface:
- 3-wire serial interface
- Other features:
- Voltage regulator to supply internal PLLs
- Selectable voltage doubler
- Programmable low battery detection time multiplexed with RSSI carrier detection
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| SA58646BD | SA58646BD-T | 9352 808 79118 | Volume production | SOT314-2
(LQFP64) | Reel Pack, SMD, 13" | Standard Marking | SA58646BD
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| SA58646BD | 9352 808 79118 | NA | ARROW ELECTRONICS | 1,500 | 1/8/2009 | Buy online | Order samples | ||
| NA | DIGI-KEY CORPORATION | 1,500 | 1/8/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 2,851 | 1/8/2009 | Buy online |
Applications
- 902 MHz to 928 MHz full-duplex radio
- UHF to 900 MHz data transceiver
- UHF push-to-talk walkie-talkie
Disclaimer
The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.
The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
- http://www.philips.semiconductors.com use http://www.nxp.com
- http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
- sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)
The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.