GC5325SEK Datasheet, PDF (12/24 Pages) Texas Instruments – GC5325 Wideband Digital Predistortion Transmit Processor

GC5325
SLWS215 – JANUARY 2009 .............................................................................................................................................................................................. www.ti.com
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
V_DD, V_DDA2, V_PP
V_DDA1
V_DDS
V_DDSHV
I_DD, I_DDA1, I_DDA2,
I_PP
I_DDS
I_DDSHV
T_C
T_J
Core supply voltages.
Note V_DDA2 ≤ V_DD
Analog supply for DPD PLL
Digital supply voltage for TX
Digital supply voltage
Combined supply current for Vdd, Vdda1,
Vdda2, and V_PP
Digital supply current for TX
Digital supply current
Case temperature
Junction temperature
See ⁽¹⁾
See ⁽²⁾
See ⁽³⁾
MIN TYP
1.14
1.2
1
1.1
1.71
1.8
3.15
3.3
-40
30
MAX UNIT
1.26 V
VDD V
1.89 V
3.45 V
3A
0.25 A
0.3 A
85 °C
105 °C
(1) VDDA1 must be less than VDD1 when VDD1 is low. See recommended filtering circuit in Figure 1. Maximum observed current on
VDDA1 is 8 mA.
(2) Chip specifications in are production tested to 90°C case temperature. QA tests are performed at 85°C.
(3) Thermal management may be required for full-rate operation. Sustained operation at elevated temperatures reduces long-term reliability.
Lifetime calculations based on maximum junction temperature of 105°C.
THERMAL CHARACTERISTICS
R_θJA
R_θJMA1
R_θJC
R_θJB
PARAMETER
Thermal resistance, junction-to-ambient (still air)
Theta junction to ambient (1 m/s)
Thermal resistance, junction-to-case
Thermal resistance, junction-to-board
352 BGA at 4 W
15
11.8
0.92
5.3
UNITS
°C/W
°C/W
°C/W
°C/W
12
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