AFE8405 Datasheet, PDF (22/152 Pages) Texas Instruments – 14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER

AFE8405
14-BIT, 85-MSPS, SINGLE-ADC, 8-CHANNEL WIDEBAND RECEIVER
SLWS212 – OCTOBER 2008
www.ti.com
DDC Performance (WCDMA Carrier With Tone Blocker)
f_DATA = 61.44 MSPS, DDC rate = 122.88 MSPS, WCDMA carrier at 70 MHz and –71 dBFS, tone blocker at 73 MHz and
–1 dBFS.
ADC OUTPUT
DDC OUTPUT
0
0
−20
−20
−40
−60
−40
−80
−60
−100
−80
−120
−140
0
5
10
15
20
25
30
f − Frequency − MHz
−100
−4 −3 −2 −1 0 1 2 3 4
f − Frequency − MHz
G020
Figure 5-19.
DDC Performance (CDMA Carrier With Two-Tone Blocker)
f_DATA = 78.6432 MSPS, DDC rate = 78.6432 MSPS, CDMA2000 carrier at 70 MHz and –84 dBFS, tone 1 at 70.9 MHz and
–12 dBFS, tone 2 at 71.7 MHz and –12 dBFS.
ADC OUTPUT
DDC OUTPUT
0
−20
−40
−60
−80
−100
−120
−140
0
0
−20
−40
−60
−80
5
10
15
20
25
30
f − Frequency − MHz
−100
−1.5 −1.0 −0.5 0.0 0.5 1.0 1.5
f − Frequency − MHz
G022
Figure 5-20.
22
Typical Characteristics
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