TestData Summary of 5.2GHz WLAN Direct Conversion RF Transceiver Board

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1 Page 1 of 16 ========================================================================================= TestData Summary of 5.2GHz WLAN Direct Conversion RF Transceiver Board ========================================================================================= Serial Number : 0001 Date : 3-FEB-03 Tester : No Receiver Test Measured Target Units 1 Inband Input IP3-12 >-10 dbm 2 Baseband S/N at 5.24GHz (ADC goes Vpp) -82dBm -65dBm -30dBm >+7 >+23 >+23 db db db 3 Passband Peak Peak Ripple at 5.24GHz (300kHz 8MHz) 0.8 <1 dbpp 4 Overall Rejection at Carrier of first Adjacent Channel (+/-20MHz) second Adjacent Channel (+/-40MHz) 5 Baseband Image Rejection at 5.24GHz 1MHz 4MHz 8MHz >25 >45 >-23 >-23 >-23 6 Static DC Offset after Mixer 20 <100 mv 7 dbc dbc dbc dbc dbc No Transmitter Test Measured Target Units 1 RF Output Power at 5.24GHz to meet Mask Maximal AGC Minimal AGC > dbm dbm 2 Output IP3 +26 >+28 dbm 3 Passband Peak Peak Ripple (300kHz 8MHz) 0.3 <0.5 dbpp 4 Baseband Image Rejection at 5.24GHz 1MHz 4MHz 8MHz <-30 <-30 <-30 dbc dbc dbc 5 Carrier Leakage at 5.24GHz -35 <-15 dbc No RF Local Oscillator Test Measured Target Units 1 Tuning Range (5.18GHz- 5.32GHz) OK 2 Integrated RMS PhaseJitter (10kHz to 10MHz) 5.18GHz 5.24GHz 5.32GHz < 3.0 < 3.0 < 3.0 deg deg deg

2 Page 2 of 16 TestSetup RF GENERATOR A 5GHz, -90 to -30dBm CW, QPSK 10MHz Ref out LAPTOP MATLAB V13 Instrument Control Toolbox U S B U S B G P I B RF GENERATOR B 5GHz, -90 to -30dBm CW, QPSK Diff. Probe Diff. Probe DIGITAL SAMPLING SCOPE 2 x 14bits / 40MS/s 2 Channel G P I B DUT Direct Conversion Radio RX Test Power Attenuator AD AD RX_I RX_Q DIGITAL LOGIC ANALYZER 2 x 14bits / 40MS/s State Mode G P I B DA TX_I DIGITAL PATTERN GENERATOR 10MHz Ref in TX Test DA TX_Q 2 x 14bits / 40MS/s MATLAB Synth 10MHz Ref in Binary converter 1tone, 2tone, OFDM SPECTRUM ANALYZER 10kHz to 6GHz Analog PowerSupply Digital PowerSupply P a r a PC Windows Vari-L GUI PhaseNoise option RF POWER METER 10kHz to 6GHz High Peak Power Head

Page 3 of 16 1-1) Receiver, IQ Baseband Analog Frequency Response Signal before AD Converter Signal after

3 Page 3 of ) Receiver, IQ Baseband Analog Frequency Response Signal before AD Converter Signal after Baseband LNA 1. Adjacent Channel 20MHz -31.4dB 2. Adjacent Channel 40MHz -50.8dB 1-2) Passband Ripple 0.4dBp

4 Page 4 of ) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal 5.244GHz, -82dBm, CW Input signal DC Offset Channel Filter shaping Image 1-4) 1-5)

5 Page 5 of ) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal 5.244GHz, -65dBm, CW 1-7) 1-8)

6 Page 6 of 16 7) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal 5.244GHz, -30dBm, CW 1-9) 1-10)

7 Page 7 of 16 AD Discrete Step Performance 1-11) No missing codes, more or less equal binwidth

Page 8 of 16 1-12) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal 5.

8 Page 8 of ) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal offset GHz, -65dBm, CW Frequency Offset Image Rejection = 1MHz = -28dBc Frequency Offset Image Rejection = 4MHz = -27dBc Frequency Offset Image Rejection = 8MHz = -26dBc

9 Page 9 of ) Receiver, IQ Digital Baseband, Sampling Rate 40Ms/s, 4096 samples, Input Signal 5.243GHz , -30dBm, CW 2 tone input IP3 product Image

Page 10 of 16 1-14) Transmitter, I signal Analog Baseband after DAC, WLAN BPSK 800bit packet, Frequency domain, before filtering First unwanted Image.

10 Page 10 of ) Transmitter, I signal Analog Baseband after DAC, WLAN BPSK 800bit packet, Frequency domain, before filtering First unwanted Image. OFDM convoluted with sampling Impulse train (sin(x)/x) OFDM Waveform DAC sampling rate : 40Ms/s Multiple unwanted OFDM images Wanted OFDM Waveform Comments : The baseband spectral shape should be able to pass the WLAN standard. The analog filter should have about 30dB rejection at 30MHz. With DAC who have internal interpolation (up-sampling) the filter specification could be relaxed significantly.

Page 11 of 16 Transmitter, RF signal with WLAN OFDM BPSK 800bit packet TX RF signal before going into PowerAmplifier TX RF signal after PowerAmplifer at the antenna connector RF PowerRMS =

11 Page 11 of 16 Transmitter, RF signal with WLAN OFDM BPSK 800bit packet TX RF signal before going into PowerAmplifier TX RF signal after PowerAmplifer at the antenna connector RF PowerRMS = +10dBm Spectral mask would pass TX RF signal after PowerAmplifer at the antenna connector RF PowerRMS = +16dBm Spectral mask would probably not pass Spectrum Mask from a Physical Layer Standard

Page 12 of 16 1-15) Transmitter, RF signal with 2tone test for Linearity Carrier Leakage Wanted 2tone Image IP3 products TX RF

12 Page 12 of ) Transmitter, RF signal with 2tone test for Linearity Carrier Leakage Wanted 2tone Image IP3 products TX RF Power RMS : +15dBm at atenna port IP3 products : -22dBc Resulting output IP3 : +26dBm Carrier Leakage : -35dBc Image rejection : -25dBc

13 Page 13 of 16 Transmitter, IQ signal Analog Baseband after Filter, WLAN BPSK 800bit packet, sampled with Scope, 1000 samples Comments :

Page 14 of 16 1-16) LO/2 signal, Frequency Domain, 10MHz HP RF Generator reference, 2.

14 Page 14 of ) LO/2 signal, Frequency Domain, 10MHz HP RF Generator reference, 2.62GHz Span 50MHz Span 1MHz Integrated RMS Phasenoise at 5.24GHz: Frequency offset (Hz) 10k 20k 50k 100k 10M Phasenoise (dbm/hz) RMS Phasejitter (10kHz-10MHz) = 2.2degree

15 Page 15 of 16 Impulse response over a full RX-TX chain TBD

16 Page 16 of 16 Measured static values No Static values Measured Target Units 1 Receiver ON current consumption +8V PowerSupply -8V PowerSupply 5V PowerSupply 3V PowerSupply ma ma ma ma 2 Transmitter ON current consumption +8V PowerSupply -8V PowerSupply 5V PowerSupply 3V PowerSupply 3 LO/2 RF Power after Splitter after TX booster after RX booster ma ma ma ma 7

ADI 2006 RF Seminar. Chapter II RF/IF Components and Specifications for Receivers

ADI 2006 RF Seminar. Chapter II RF/IF Components and Specifications for Receivers ADI 2006 RF Seminar Chapter II RF/IF Components and Specifications for Receivers 1 RF/IF Components and Specifications for Receivers Fixed Gain and Variable Gain Amplifiers IQ Demodulators Analog-to-Digital