SE7051L10 Datasheet, PDF (1/2 Pages) SiGe Semiconductor, Inc. – 200-600 MHz Transceiver with Dual Synthesizer

SE7051L10
200 – 600 MHz Transceiver with Dual Synthesizer
Applications
ƒ 802.16, WiMAX
ƒ Wireless Local Loop
ƒ Proprietary Broadband Wireless Access Systems
Features
ƒ High Linearity, Low Noise
ƒ Optimized for OFDM and CDMA radios
ƒ Selectable IQ or IF baseband interfaces
ƒ Low phase noise, fully programmable on-chip IF
and RF frequency synthesizers
ƒ Rx gain > 70 dB with > 50 dB control range
ƒ TX P1db > 6 dBm
ƒ Accepts up to 2 Vpp input level from DAC
ƒ Rx Output V1dB > 1.6 Vpp
ƒ Phase noise < 1.0 degrees rms
ƒ Part of Wimax 3.3 – 3.8 GHz and 2.3 – 2.7 GHz
chipset solutions for BWA and WiMAX systems
ƒ Lead Free, RoHS compliant, 8 x 8 mm, MSL3
Package
Ordering Information
Type
SE7051L10
SE7051L10-T
SE7051L10-EV1
Package
56 pin, 8 mm x 8
mm QFN
56 pin, 8 mm x 8
mm QFN
-
Remark
Samples
Tray
Evaluation Kit
Product Description
The SE7051L10 is a highly integrated low noise, high
linearity transceiver that includes both RF (2850 to 3350
MHz) and IF (200 to 600 MHz) synthesizers. The
receiver down-converts signals in the frequency range
of 200 to 600 MHz to either baseband IQ outputs or IF
output. The high linearity output provides excellent
inter-modulation performance and drive capability for
the ADC interface. A high-speed digital VGA delivers
50dB of gain control range, with 1 dB resolution. On
transmit, the baseband IQ input signals are up-
converted to an IF output frequency between 200 and
600 MHz. Alternatively, the transmitter may be
configured for single sideband up-conversion of an IF
input signal.
The transmitter has a total of 68 dB of gain control
range, with 1 dB resolution, that is distributed between
the modulator and VGA. The VGA has 50 dB range
while the modulator provides 18 dB with coarse (6 dB)
resolution. The variable gain modulator can accept a
wide range of input voltages thus allowing flexibility in
the choice of baseband DAC. The dual synthesizers
provide very low phase noise LOs that are suitable for
high order digital modulation radios.
Functional Block Diagram
Figure 1: SE7051L10 Block Diagram
SiGe
SE7051L10
RX
Input
BB Interface
(IF or IQ) Select
90°
÷2
RF LO
Output
Dual
Synthesizer
TX
Output
÷2
0/90
90°
RX I Output
(RX IF Output)
RX Q Output
Frequency
Reference
TX Q Input
TX IF Input
DST-0072 ƒ Rev 1.10 ƒ May-26-2009
TX I Input
NOT RECOMMENDED FOR NEW DESIGNS
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