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RF9957 The RF9957 from RFMD is a CDMA/FM receiver featuring AGC and demodulation capabilities. It offers selectable operating modes and a wide AGC gain range.
Mfr Part #:

RF9957

Available from 2 distributors
Mfr Name: RFMD
RFMD
The RF9957 from RFMD is a CDMA/FM receiver featuring AGC and demodulation capabilities. It offers selectable operating modes and a wide AGC gain range.
✓ Total Stock: 1,518 pcs

RF9957 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request 97+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
518 pcs
On Request
518 pcs On Request 1 On Request On Request 97+ On Request On Request
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RF9957 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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RF9957 Description

Short technical summary and product information.

The RF9957 by RFMD is an integrated circuit designed for CDMA and FM reception, incorporating Automatic Gain Control (AGC) and demodulation functions. This component allows for seamless switching between CDMA and FM modes via a digital control input.

 

Key electrical characteristics include a selectable mode of operation for CDMA or FM, with specific impedance values for the IN SEL input. The device provides balanced baseband outputs for both I and Q mixers, with defined output impedances for single-ended and balanced configurations. The AGC amplifier offers a significant gain range of 95dB, controlled by an analog voltage input within a specified range and source impedance.

 

This RF receiver IC is suitable for applications requiring efficient signal processing in both CDMA and FM communication systems. Its integrated AGC and demodulator simplify circuit design and enhance performance in various wireless communication devices.

RF9957 Quick Information

Product Type: RF Receiver AGC and Demodulator
Canonical Name: RF9957 CDMA / FM Receiver AGC and Demodulator
Subcategory: AGC and Demodulator

RF9957 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

RF9957 Features

  • Selectable CDMA and FM modes.
  • 95dB AGC gain range.
  • Analog gain control input.
  • Balanced I/Q baseband outputs.
  • Integrated demodulator function.

RF9957 Applications

  • CDMA communication systems.
  • FM radio receivers.
  • Wireless communication devices.
  • RF signal processing circuits.

RF9957 FAQs

6 frequently asked questions generated from this part’s specifications.
What operating modes does the RF9957 support?

The RF9957 supports CDMA and FM modes, selected via the IN SEL pin.

What is the AGC gain range of the RF9957?

The AGC gain range is 95 dB.

What is the required AGC control voltage range?

The AGC control voltage range is 0.5 to 2.5 V DC.

What impedance does the IN SEL pin present?

The IN SEL pin has 30 kΩ impedance.

What are the output impedances of the I and Q mixers?

The balanced output impedance is 2 kΩ; single-ended is 1 kΩ.

Which mixer is active in FM mode?

Only the I mixer is active in FM mode.

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