SA631 查看數據表（PDF） - Philips Electronics
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SA631 Datasheet PDF : 16 Pages
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Philips Semiconductors
1GHz low voltage LNA and mixer
Product specification
SA631
DESCRIPTION
The SA631 is a combined low-noise BiCMOS amplifier, and mixer
designed for high-performance low-power communication systems
from 800-1000MHz. The low-noise preamplifier has a 1.7dB noise
figure at 881MHz with 15dB gain and an IP3 intercept of –7dBm at
the input. The gain is stabilized by on-chip compensation to vary
less than ±0.2dB over –40 to +85°C temperature range. The
wide-dynamic-range mixer has a 10dB noise figure and IP3 of
+3.3dBm at the input at 881MHz. The nominal current drawn from a
single 3V supply is 8.3mA. Additionally, the entire circuit can be
powered down to further reduce the supply current to less than
20µA.
FEATURES
• Low current consumption
• Outstanding gain and noise figure
• Excellent gain stability versus temperature and supply voltage
• LNA and mixer power down capability
• Designed in Philips state of the art BiCMOS QUBIC process
APPLICATIONS
• 900MHz cellular and cordless front-end
• Spread spectrum receivers
• RF data links
• UHF frequency conversion
• Portable radio
ORDERING INFORMATION
DESCRIPTION
20-Pin Shrink Small Outline Package (Surface-mount, SSOP)
PIN CONFIGURATION
PD1 1
PD2 2
GND 3
LO OUT 4
GND 5
GND 6
GND 7
GND 8
GND 9
GND 10
20 MIXER OUT
19 MIXER OUT
18 GND
17 MIXER IN
16 GND
15 LNA IN
14 GND
13 LNA OUT
12 VCC
11 GND
SR00124
Figure 1. Pin Configuration
TEMPERATURE RANGE
–40 to +85°C
ORDER CODE
SA631DK
DWG #
SOT266-1
BLOCK DIAGRAM
MIXER MIXER
MIXER
LNA
LNA
OUT
OUT
GND
IN
GND
IN
GND
OUT
VCC
GND
20
19
18
17
16
15
14
13
12
11
LNA
1998 Jan 08
1
2
3
4
5
6
7
8
9
10
PD1
PD2
GND
LO
GND
GND
GND
GND
GND
GND
OUT
SR01588
Figure 2. SA631 Block Diagram
2
853–2045 18847
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