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RFR6120/RFR6125 Device Descriptions
The RFR6120 and RFR6125 chips, optimized
specifically for single-band cellular receive operation,
include an integrated CDMA LNA/mixer and UHF
voltage control oscillator (VCO). The RFR6125
device also includes an integrated GPS LNA/mixer
and GPS VCO. The CDMA LNA performs all of the
required gain, NF, IP2, IP3 and back isolation for
local signal leakage. The integrated UHF VCO
covers both cellular and J-CDMA bands, and is
controlled by the receive (Rx) PLL integrated in the
RFT6120 chip. The RFR6120 and RFR6125 chips
are offered in 6 mm x 6 mm 40-pin Quad Flat No-
Lead (QFN40) packages.
RFR6120/RFR6125 Device Features
• CDMA2000 1X Mobile Station Modem chipset compatibility
• Full direction down conversion — RF to baseband
• Full international cellular band operation support in Japan, China,
India, Latin America, Korea and the United States
– GPS mode/band operation support (RFR6125 only)
• Supports full international CDMA2000 1X cellular band
• Receive path circuitry (includes high dynamic range baseband filter,
cellular LNA and mixer, GPS LNA and mixer (RFR6125 only),
on-chip UHF VCO, on-chip GPS VCO (RFR6125 only))
• Integrated LNA with programmable gain steps
• Individual circuit power on/off controls
• Power reduction feature control extends handset standby time
– Selective circuit power-down
– Gain and bias controls
• QUALCOMM's efficient three-line SBI
• Low-power supply voltage (2.7 to 3.0 V)
• Digital reference voltage is compatible with lower MSM voltage
(1.8 to 3.0 Vdd)
• Available in small, thermally efficient package (QFN40)
RFT6120 Device Description
The RFT6120 chip, tailored specifically for
single-band cellular transmit operation, consumes
lower current than its quad-mode predecessor, the
RFT6100 device, and is offered in a 5 mm x 5 mm
32-pin Quad Flat No-Lead (QFN32) package.
RFT6120 Device Features
• CDMA2000 1X Mobile Station Modem chipset compatibility
• Full direction up conversion — baseband to RF
• Full international cellular band operation support in Japan, China,
India, Latin America and the United States
• Supports full international CDMA2000 1X cellular band*
• Transmit path circuitry
– Baseband amplifier
– One set of quadrature modulators/upconverters
– RF AGC amplifier, driver amplifier with on-chip RF matching)
• LO generation circuit integration
• On-chip transmit synthesizer (transmitter PLL and VCO)
• On-chip receiver PLL (to control UHF VCO)
• Transmit power control range greater than 85 dB
• Power reduction feature via MSM control extends handset talk time
– Optimized for low DC power consumption versus RF output level
– Transmit puncturing
– Selective circuit power-down
• QUALCOMM's efficient three-line SBI
• Low-power supply voltage (2.7 to 3.0 V)
• Small, thermally efficient package (QFN32)
QUALCOMM [ QUALCOMM INCORPORATED ]
