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參數(shù)資料
| 型號(hào)： | ADL5571 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 放大器 |
| 英文描述： | 2500 MHz - 2700 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, LFCSP-16 |
| 文件頁數(shù)： | 8/11頁 |
| 文件大?。?/td> | 787K |
| 代理商： | ADL5571 |
ADL5571
Preliminary Technical Data
Rev. PrB | Page 6 of 11
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
x
xxx-
xx
PIN 1
INDICATOR
5
VCC1
6
RFIN
7
GND
8
VREG
15 RFOUT
16 NC
14 RFOUT
13 NC
9
C
F
LT
1
10
C
F
LT
2
11
N
C
12
N
C
3
G
N
D
4
S
T
B
Y
2
V
C
2
1
N
C
ADL5571
TOP VIEW
(Not to Scale)
Figure 2. ADL5571 Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
5
VCC1
Connect to Power Supply.
6
RFIN
Matched RF Input.
8
VREG
When VREG is low, the device goes into sleep mode, reducing supply current to 1 uA. When VREG is
high (2.85 V), the device operates in its normal transmit mode. When high, VREG draws a bias current of
approximately 10 mA.
9,10
CFLT1, CFLT2
A Ground Referenced Capacitor. It should be connected to this node to reduce bias line noise .
14, 15
RFOUT
Unmatched RF Output. These parallel outputs can be matched to 50 Ω using strip-line and shunt
capacitance. The power supply voltage should be connected to these pins through a choke inductor.
2
VCC2
This power supply pin should be connected to the supply via a choke circuit (see Figure 8).
4
STBY
When STBY is low (0 V), the device operates in transmit mode. When the radio is receiving data, STBY
can be taken high (2.5 V), reducing supply current to 10 mA.
1, 11, 13, 16
N/C
No Connect. Do not connect these pins.
7
GND
Connected to Ground.
Exposed
Paddle
The exposed paddle should be soldered down to a low impedance ground plane (use multiple vias (at
least 9) to stitch together the ground planes) for optimum electrical and thermal performance.
Table 5. Operating Modes1
Mnemonic
Normal Operation
Standby Mode
Sleep Mode
VREG
High
Low
STBY
Low
High
X
1 X = don’t care.
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