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參數(shù)資料
| 型號： | SA9503 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 衰減器 |
| 英文描述： | Dual-band, CDMA/AMPS LNA and downconverter mixers |
| 中文描述： | RF/MICROWAVE DOWN CONVERTER |
| 封裝： | PLASTIC, HEATSINK BOTTOM CHIP CARRIER, SOT560-1, 32PIN |
| 文件頁數(shù)： | 2/16頁 |
| 文件大小： | 169K |
| 代理商： | SA9503 |
Philips Semiconductors
Objective specification
SA9503
Dual-band, CDMA/AMPS LNA
and downconverter mixers
2
1999 Jul 29
DESCRIPTION
The SA9503 is an integrated CDMA/AMPS low noise amplifier
(LNA) plus a downconverter, for both the 900 MHz Cellular band and
the 1.9 GHz PCS band. The LNA incorporates 5 settings of digitally
selected stepped gain in the Cellular band and in the PCS band.
One of the modes (high linearity mode) in each of the Cellular and
PCS bands, includes a high IP3 setting in order to meet the 1-tone
CDMA desensitization test. The gain, noise figure and IP3 for the
remaining 4 low current modes in the Cellular band, are designed in
order to have sufficient separation between the antenna power
levels at which the LNA gains are changed, based on multi-tone
interference levels. A 3 dB overlap is allowed in the antenna power
levels for the adjacent modes. Table 1 indicates a typical scenario.
The downconverter portion is based on our SA9502 and is designed
to meet all the stringent spurious rejections that are required in the
Cellular and PCS bands. There are three individual mixer blocks,
each optimized for high linearity with low power consumption for
operation in one of the following modes: 1900 MHz PCS CDMA,
800 MHz Cellular CDMA, or 800 MHz analog FM AMPS/TACS
modes.
The circuit has been designed in our advanced QUBiC3 BiCMOS
process with 30 GHz f
T
.
FEATURES
Versatile step gain LNA
Can meet single tone CDMA desensitization requirements
Can meet CDMA two tone interference requirements
Cellular
PARAMETER
MODE
CEL_2
CEL_L
CEL_1
CEL_3
CEL_4
Gain (dB)
17
15.5
9
3
–4
Noise figure (dB)
2
1.6
1.9
4.5
11
Input IP3 (dBm)
5.5
–2
–3.5
2
15
Current (mA)
PCS
13.2
4.9
4.9
4.9
3.7
PARAMETER
MODE
PCS_2
PCS_L
PCS_1
PCS_3
PCS_4
Gain (dB)
15.2
14.3
8
2
–4.5
Noise figure (dB)
2.5
2
2.5
3.7
11.5
Input IP3 (dBm)
4.5
1
–2
–1
16
Current (mA)
13.3
5.9
5.9
5.9
3.7
Downconverter typical performance
PARAMETER
Cellular FM
Cellular CDMA
PCS CDMA
Gain (dB)
7.5
11.5
12.5
Noise Figure (dB)
10
9
9
Input IP3 (dBm)
5
3.5
4
Current (mA)
(Tx) LO output
buffer off
Separate, selectable IF outputs to suit FM and CDMA bandwidths
Buffered Cellular and PCS LO inputs
Integrated frequency doubler for PCS mixer LO
Differential (Tx) LO output buffer (can be switched on or off)
Low voltage operation down to 2.7 volts
Mixers current consumption with (Tx) LO buffer on:
–
Cellular FM: 16.8 mA
–
Cellular CDMA: 23 mA
–
PCS: 26 mA
Low standby current in sleep mode: <50
μ
A
BCC32++
package
6.8
13
16
APPLICATIONS
800 MHz analog FM and CDMA digital receivers
1900 MHz PCS band CDMA digital receivers
Supports dual-band and triple-mode operation
Digital mobile communications equipment
Portable, low power radio equipment
BCC32++ is a trademark of Fujitsu Microelectronics.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA9504 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Dual-band, PCSCDMA/AMPS LNA and downconverter mixers |
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