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Philips Semiconductors Product data
SA2411+20 dBm single chip linear amplifier for WLAN
2003 Feb 07
7
9. OPERATING CONDITIONS
The SA2411 shall meet all of the operating conditions outlined in this section. Table 3 specifies the absolute maximum ratings for the device.
Table 4 gives the recommended operating conditions.
Table 3. Absolute maximum ratings
Symbol Parameter Min Max Unit
T
stg
Storage temperature –55 +150 °C
V
DDa
Supply voltage (analog) –0.5 +3.85 V
– Voltage applied to inputs –0.5 V
DD
+0.5 V
– Short circuit duration, to GND or V
DD
– 1 sec
Table 4. Recommended operating conditions
Symbol Parameter Min Nom Max Units
T
amb
Ambient operating temperature –40 – +85 °C
V
DDa
Supply voltage (analog) 2.85 3.3 3.6 V
10. SA2411 TRANSMITTER REQUIREMENTS
Table 5. SA2411 transmitter specifications
T
amb
= 25 °C; V
CC
= 3 V; frequency = 2.45 GHz, R
detector
= 5.6 kΩ, unless otherwise stated.
Specification Condition, Remarks Min Nom Max Units
DC
DC current Standard mode (pin 10 is floating) – 35 – mA
DC current Low output power mode (pin 10 is grounded) – 28 – mA
Leakage current Vpwrup = 0 V. Vss = 3.0 V – – 10 µA
AC : 802.11b MODULATION
Output back off (relative to 1 dB compression of single carrier) – 2 – dB
RF frequency 2.4 2.45 2.5 GHz
Input impedance Differential (75 Ω + 25j Ω) – 100 – Ω
Load impedance Single ended – 50 – Ω
Power gain for small signal Mode = High gain, Input level = –20 dBm – 14.5 – dB
Power gain for small signal Mode = Low gain, Input level = –20 dBm – 13 – dB
Output power Meeting the FCC specs of 30 dBc and 50 dBc, mode = high – +20.0 – dBm
Current consumption “ – 200 – mA
Gain “ – 12.5 – dB
Output power Meeting the FCC specs of 30 dBc and 50 dBc, mode = low – +20.0 – dBm
Current consumption “ – 200 – mA
Gain “ – 12.5 – dB
Power ramping up time 10% to 90% ramp up – 0.5 – µs
Power ramping down (when
enabled)
a) 90% to 10% ramp down
b) 10% to carrier leakage level
– 0.5
0.5
– µs
Error Vector Magnitude 11 Msymbols/s QPSK. Both RF outputs. – 5 – %
Isolation Pin 15 (PWRUP) = 0 V – 15 – dB
Harmonic Suppression at 2 and 3
times fundamental frequency
fundamental frequency output power = +20 dBm – 40 – dBc