GC5328 Datasheet, PDF (6/27 Pages) Texas Instruments – GC5328 Low-Power Wideband Digital Predistortion Transmit Processor

GC5328
SLWS218A – OCTOBER 2009 – REVISED OCTOBER 2009
GC532x
DPD Clock
TX21, TX20
DataClock
DAC Clock
ExtTerm⁽¹⁾
ExtPullup⁽²⁾
DAC5682Z
CLKIN, CLKINC
DCLK, DCLKC
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TX[] ^{Differential Data}
(See HW Data Sheet)
ExtPullup/
PullDown
D[15:0]P, D[15:0]N
SYNCP, SYNCN
(1) ExtTerm – see DAC data sheet.
(2) ExtPullup, 500 Ω to 1.8 V, only required when DAC Data Clock > 337 MHz
Figure 4. GC5328 to DAC5682Z Interface
B0371-01
GC532x
DPD Clock
TX21, TX20
DataClock
DAC Clock
ExtTerm⁽¹⁾
ExtTerm1⁽²⁾
DAC5688
CLKIN, CLKINC
DCLK, DCLKC
TX[] - DACI[]
(See HW Data Sheet)
Single-Ended
1.8-V CMOS
ExtTerm1⁽²⁾
DACA[15:0]
TX[] - DACQ[]
(See HW Data Sheet)
Single-Ended
1.8-V CMOS
ExtTerm1⁽²⁾
DACB[15:0]
TX18
Single-Ended
1.8-V CMOS
TXENABLE
(1) ExtTerm – see DAC data sheet.
(2) ExtTerm1 – tester uses 50 Ω to 0.9 V for termination.
Figure 5. GC5328 to DAC5688 Interface
B0372-01
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