參數(shù)資料
型號: RF2668
廠商: RF MICRO DEVICES INC
元件分類: 無繩電話/電話
英文描述: CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER WITH INTEGRATED PLL
中文描述: TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT
封裝: 7 X 7 MM, PLASTIC, LQFP-48
文件頁數(shù): 10/16頁
文件大?。?/td> 430K
代理商: RF2668
Preliminary
5-80
RF2668
Rev B4 010423
5
M
U
Application S chematic
S ingle- or Dual-Mode Operation
Band Gap
Rel
Bias
Supply
Quad
/2
Σ
48
45
46
47
44
43
42
41
40
39
38
37
13
16
15
14
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
12 nH
2 pF
10 nF
10 nF
100 pF
100 pF
1 nF
1 nF
1 nF
1 nF
10 nF
MODE CE
AGC
MIX
EN
VCO
EN
PLL
ON
270
1 nF
SET1
SET2
47 k
10 nF
200
D1
39 nH
**
39 nH
**
10 nF
3.9 k
VTUNE
DO
LD
10 nF
36 k
1 nF
220 pF
DO
10 nF
1 nF
1 nF
39 k
10 nF
10 nF
REF
Lock
Detect
/R
/N
Charge
Pump
V
CC
V
CC
V
CC
RF OUT
LO2
MIX IN+
MOD OUT-
V
CC
V
GC
OSIG
ISIG
V
CC
LO1+
V
CC
OSC REF
2.2 nF
33 pF
LO1-
MIX IN-
MOD OUT+
V
CC
L1*
L2*
*L1 and L2 are the bias
choke inductor.
**Denotes components not normally populated.
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