参数资料
型号: MAX2009ETI+T
厂商: Maxim Integrated
文件页数: 16/19页
文件大小: 0K
描述: IC RF PREDISTORT ADJ 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: RF 前置补偿器
频率: 1.2GHz ~ 2.5GHz
RF 型: CDMA2000,DCS1800,WCMDA/UMTS
次要属性: 高达 12dB ACPR 性能改善
封装/外壳: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)
1200MHz to 2500MHz Adjustable
RF Predistorter
POWER
AMPLIFIER
P OUT = 7dBm
OUTP
6
ING
3
MAX2009
PREAMPLIFIER
V PF_S1 = 1.5V
P IN = 14dBm
9 INP
11 PFS1
OUTG 27
GBP 23
12 PFS2
PHASE
GAIN
19 PBRAW
CONTROL
CONTROL
GFS 24
18 PBEXP
PBIN PDCS1 PDCS2
GCS
V PBIN = 0.8V
17
13
14
25
V PDCS1 = 0V
V PDCS2 = 5V
Figure 4. AM-PM Response Tuning Circuit
Power-Supply Bypassing
Bypass each V CC pin with a 0.01μF capacitor.
Exposed Pad RF
Table 1. Suggested Components of
Typical Application Circuit
The exposed paddle (EP) of the MAX2009’s 28-pin thin
DESIGNATION
VALUE
TYPE
QFN-EP package provides a low inductance path to
ground. It is important that the EP be soldered to the
C1, C6, C8, C10 8.2pF ±0.25pF 0402 ceramic capacitors
ground plane on the PC board, either directly or
through an array of plated via holes.
C2, C3
C4, C5
C7, C9
R1, R2
VR1, VR2
1.5pF ± 0.1pF
0.01μF ± 10%
0.5pF ± 0.1pF
1k Ω ± 5%
Skyworks
SMV1232-079
0402 ceramic capacitors
0603 ceramic capacitors
0402 ceramic capacitors
0402 resistors
Hyperabrupt varactor
diodes
16
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