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參數資料
| 型號： | RFR6125 |
| 廠商： | Qualcomm Incorporated |
| 英文描述： | MSM6150 CHIPSET SOLUTION |
| 中文描述： | MSM6150芯片組解決方案 |
| 文件頁數： | 4/8頁 |
| 文件大?。?/td> | 474K |
| 代理商： | RFR6125 |
RFT6100 Device Description
The RFT6100 device is a direct conversion
chipset that integrates all the upconversion and
modulation functionality necessary for
CDMA-mode phones operating in cellular and
PCS bands. This transmit chip consists of two
sets of I/Q modulators, one for cellular and one
for the PCS band. The baseband I/Q input from the MSM directly
modulates the cellular or PCS carrier derived from the respective LO
generation circuit.
Both the cellular and PCS output drive their own VGA with a gain
control range of 85 dB. A final cellular driver amplifier provides a
modulated RF output.
To accommodate split-band and filtering, the PCS VGA drives two
output amplifiers that can be selected independently or
simultaneously via an input selectable switch. All RF outputs have
fully integrated 50-ohm matching networks. Integrated on the
RFT6100 is the receiver phase locked loop (PLL), the transmit
PLL and the entire transmit VCO including resonant components.
The VCO drives the LO generation block, which in turn generates
the required local-oscillator signal for all CDMA bands of
operation.
RFT6100 Device Features
Reduction in component count, space and cost via radioOne
chipset that eliminates receiver and transmitter IF
Single- or dual-band operation: cellular and PCS
Single- or multimode operation:
– Cellular CDMA
– PCS CDMA
Full direct upconversion from analog baseband to RF
Transmit signal path:
– Baseband amplifier
– Two sets of quadrature modulators/upconverters
– RF AGC amplifier, switch network, driver amplifier
Integration of LO generation circuit
Requirement of only one external VCO for all CDMA bands of operation
Entire transmit synthesizer on chip (transmitter PLL and VCO)
Receiver PLL on chip
Greater than 85 dB transmit power control range
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
Efficient three-line QCT SBI
Power supply voltage (2.7 to 3.0 V)
Small thermally efficient package (40-pin BCC++)
Q U A L C O M M C D M A T E C H N O L O G I E S
HTTP://WWW.CDMATECH.COM
4
MSM6150
CHIPSET SOLUTION
E N A B L I N G T H E F U T U R E O F C O M M U N I C A T I O N S
T M
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