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參數(shù)資料
| 型號： | MAX2422EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Hex Buffers/Drivers With Open-Collector High-Voltage Outputs 14-SO 0 to 70 |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO28 |
| 封裝： | 5.30 MM, MO-150, SSOP-28 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 250K |
| 代理商： | MAX2422EAI |
M
900MHz Image-Reject Transceivers
_______________________________________________________________________________________
9
Pin Description (continued)
Ground Connection for VCO and Phase Shifters
Ground (substrate)
Ground Connection for Master Bias Cell
26
27
28
GND
GND
GND
Supply-Voltage Input for VCO and Phase Shifters. Bypass with a 47pF low-inductance capacitor to GND
(pin 26 if possible).
Differential Oscillator Tank Port. See
Applications Information
for information on tank circuits or on using
an external oscillator.
23
V
CC
Supply-Voltage Input for Prescaler. Bypass with a 47pF low-inductance capacitor and 0.01μF to GND
(pin 20 if possible).
22
V
CC
FUNCTION
PIN
NAME
Differential Oscillator Tank Port. See
Applications Information
for information on tank circuits or on using
an external oscillator.
25
24
TANK
TANK
V
CC
V
CC
V
CC
17
16
15
18
19
21
1000pF
TRANSMIT IF INPUT (330
)
V
CC
VARACTOR:
ALPHA SMV1299-004
OR EQUIVALENT
RECEIVE IF OUTPUT (330
)
SEE APPLICATIONS INFORMATION SECTION
L3: COILCRAFT 0805HS-060TJBC
COILCRAFT 0805HS-030TJBC
27
23
26
3
12
20
22
1
28
RECEIVE
RF INPUT
TRANSMIT
RF OUTPUT
5
9
6
7
0.01
μ
F
0.01
μ
F
47pF
V
CC
0.1
μ
F
V
CC
V
CC
2
47pF
0.1
μ
F
8.2nH
12nH
22nH
18nH
47pF
47pF
47pF
8
11
0.01
μ
F
47pF
0.01
μ
F
MAX2420
MAX2421
MAX2422
MAX2460
MAX2463
6.8
3.3
3.3
6.8
6.8
L3
(nH)
PART
VCO TANK COMPONENTS FOR
915MHz TYPICAL RF
C26
(pF)
1.8
3.6
3.0
1.5
2.4
C2, C3
(pF)
3.3
4.0
4.0
4.0
4.7
R6, R7
(
)
10
15
20
15
15
47pF
47pF
14
0.01
μ
F
47pF
RXIN
TXOUT
GND
V
CC
GND
CAP2
GND
CAP1
V
CC
V
CC
TXON
RXON
VCOON
DIV1
MOD
PREOUT
TXON
RXON
VCOON
DIV1
MOD
TO PLL
GND
RXOUT
TXIN
100nH
GND
PREGND
47pF
V
CC
24
25
VCO
ADJUST
47pF
C3
1k
47k
1k
C2
R6
R7
L3
C26
TANK
TXGAIN
LNAGAIN
TXGAIN
LNAGAIN
10
4
MAX2420
MAX2421
MAX2422
MAX2460
MAX2463
TANK
Figure 1. Typical Operating Circuit
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