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2.4GHz ISM Band RF Transceiver
ETS 300 328
Air Interface complies with FCC Part 15 Rules
Power Management for Minimizing Supply Current
Power Supply 3.0V + 10%
Power Control for TX tranmission
Operating Temperature: -40擄C to +85擄C
General Description
The BT2577 is a high-performance transceiver for
worldwide 2.4GHz ISM band applications. It includes
on-chip features such as the LNA, Modulator / Demodu-
lator, RF VCO, image-rejection mixer and upconversion
mixer.
The receiver section of the BT2577 contains a Low
Noise Amplifier (LNA), a downconverter (image rejection
mixer), IF AMP, Limiter, FM demodulator, data slicer,
RSSI, and RF Voltage Control Oscillator (VCO). The
receiver is designed to require a minimal number of
external components and pin count for cost effective-
ness.
The transmitter section will share the same RF VCO with
the receiver, but also includes FSK modulator, upcon-
verter, and power amplifier.
The transmitter also
requires minimal external components for reducing mass
production cost.
Since there is no IF or RF PLL included on the BT2577,
the design engineer can choose the most appropriate
RF-IF PLL to use based upon their unique system power
consumption, cost and performance requirements.
Keeping the PLL Synthesizer separate from the rest of
the RFIC Transceiver also makes it possible to accom-
plish lower noise, and higher peformance designs, due
to the improved isolation between the high and low fre-
quency synthesizer sections and the RX and TX signal
conversion chains.
TRFIC
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www.betheltronix.com
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Functions
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Receiver:
Low Noise Amplifier (LNA) w/ Gain Control
Image Reject RF Mixer
RSSI
GFSK Demodulator
FM (analog)/FSK (digital) output
Transmitter:
FM/FSK Modulator
Upconversion Mixer
Power Amplifier with Power Control (9 dBm/
16dBm)
RFICs for 850 - 2400MHz
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2.4GHz ISM Band Applications
Wireless local loop subscriber unit
Bluetooth
TM
wireless application products
HomeRF
TM
wireless application products
PR
Ordering Information
BT2577
2.4GHz RF Transceiver
BTI, 13825 Cerritos Corporate Dr., Cerritos CA. 90703, U.S.A.
Tel (562) 407-0500 Fax (562) 407-0510 sales@betheltronix.com
EL
I
March 9, 2001
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IN
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Applications
BTI Confidential & Proprietary Information
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