參數(shù)資料
型號: SA900BE
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: I/Q transmit modulator
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP48
文件頁數(shù): 12/20頁
文件大小: 191K
代理商: SA900BE
Philips Semiconductors
Preliminary specification
SA900
I/Q transmit modulator
1997 Sept 16
12
Table 3.
Attenuation (dB)
Power Control
PC0 (0.6dB)
PC1 (1.3dB)
PC2 (2.5dB)
PC3 (5.0dB)
PC4 (10.0dB)
PC5 (20.0dB)
0
0
0
0
0
0
0
0.6
1
0
0
0
0
0
1.3
0
1
0
0
0
0
1.9
1
1
0
0
0
0
2.5
0
0
1
0
0
0
3.2
1
0
1
0
0
0
3.8
0
1
1
0
0
0
4.4
1
1
1
0
0
0
5.0
0
0
0
1
0
0
5.7
1
0
0
1
0
0
6.3
0
1
0
1
0
0
23.3
1
0
1
0
0
1
39.7
1
1
1
1
1
1
Component
Designator
Value
R1
R2
C1
C2
C3
560
1k
2.2nF
No Load
33pF
15k
DUAL Mode
AMPS Mode
560
5.6k
2.7
μ
F
.27
μ
F
6.8nF
75k
PHSOUT
R2
R1
C1
C2
C3
V
CTRL
Typical Filter Network
R
SET
SR00640
Figure 5. PLL Loop Filter
L1
(AMPS MODULATION)
TANK_1
V
CTRL
TANK_2
V
CC
C3
C2
C1
VR1
fVCO
120MHz
1
2
L1C
C
C3
1
C1
1
C2
1
CVRI
1
C1 = C2 = 33pF
C3 = 12pF
L1 = 82nH
VR1 TOKO KV1470
SR00641
Figure 6. VCO Tank Configuration
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