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INTEGRATED CIRCUITS
SA631 1GHz low voltage LNA and mixer
Product specification IC17 Data Handbook 1998 Jan 08
Philips Semiconductors
Philips Semiconductors
Product specification
1GHz low voltage LNA and mixer
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.
PIN CONFIGURATION
PD1 PD2 GND LO OUT GND GND GND GND GND 1 2 3 4 5 6 7 8 9 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
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
GND 10
SR00124
Figure 1. Pin Configuration
• 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) TEMPERATURE RANGE –40 to +85°C ORDER CODE SA631DK DWG # SOT266-1
BLOCK DIAGRAM
MIXER OUT MIXER OUT GND MIXER IN GND LNA IN GND LNA OUT VCC GND
20
19
18
17
16
15
14
13
12
11
LNA
1
PD1
2
PD2
3
GND
4
LO OUT
5
GND
6
GND
7
GND
8
GND
9
GND
10
GND
SR01588
Figure 2. SA631 Block Diagram
1998 Jan 08
2
853–2045 18847
Philips Semiconductors
Product specification
1GHz low voltage LNA and mixer
SA631
ABSOLUTE MAXIMUM RATINGS
SYMBOL VCC VIN PD TJMAX PMAX TSTG Supply voltage1 Voltage applied to any other pin Power dissipation, Tamb = 25°C (still 20-Pin Plastic SSOP air)2 980 150 +20 –65 to +150 mW °C dBm °C PARAMETER RATING –0.3 to +6 –0.3 to (VCC + 0.3) UNITS V V
Maximum operating junction temperature Maximum power input/output Storage temperature range
NOTES: 1. Transients exceeding 8V on VCC pin may damage product. 2. Maximum dissipation is determined by the operating ambient temperature and the thermal resistance, θJA: 20-Pin SSOP = 110°C/W 3. Pins 19 and 20 are ESD sensitive (mixer outputs).
RECOMMENDED OPERATING CONDITIONS
SYMBOL VCC Tamb TJ Supply voltage Operating ambient temperature range Operating junction temperature PARAMETER RATING 2.7 to 5.5 –40 to +85 –40 to +105 UNITS V °C °C
DC ELECTRICAL CHARACTERISTICS
VCC = +3.0V, Tamb = 25°C; unless otherwise stated. LIMITS SYMBOL PARAMETER TEST CONDITIONS MIN Full power-on ICC Supply current LNA powered-down Full power-down VT VIH VIL IIL IIH PD.