- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385769 > RF2705 (RF MICRO DEVICES INC) 887664300 PDF資料下載
參數(shù)資料
| 型號(hào)： | RF2705 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 887664300 |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC24 |
| 封裝： | 4 X 4 MM, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 379K |
| 代理商： | RF2705 |
5-127
RF2705
Rev A4 041026
Pin
13
Function
RF OUT
LB N
Description
Differential low band PA driver amplifier output.
This output is intended for low band (GSM850/900) operation and
drives a differential SAW.
A bypass mode allows the low band PA driver amplifier’s input to be
switched between the signal from the modulator and the signal applied
at LOLB. This enables a GMSK-modulated signal on the LOLB input to
be switched into the RF signal path.
The output is an open collector. The outputs are matched off-chip.
Interface Schematic
14
RF OUT
LB P
RF OUT
HB N
Complementary differential low band PA driver amplifier output.
See pin 13.
See pin 13.
15
Differential high band PA Driver amplifier output.
This output is intended for DCS1800/PCS1900 band operation.
A bypass mode allows the high band PA driver amplifier’s input to be
switched between the signal from the modulator and the signal applied
at LOHB. This enables a GMSK-modulated DCS1800/PCS1900 signal
on the LOHB input to be switched into the RF signal path.
The output is an open collector. The outputs are matched off-chip.
16
RF OUT
HB P
RF OUT
WB N
Complementary differential high band PA driver amplifier output.
See pin 15.
See pin 15.
17
Differential high band PA driver amplifier output.
This output is intended for wide band (W-CDMA) applications.
The output is an open collector. The output are matched off-chip.
18
RF OUT
WB P
GND
MODE A
Complementary differential wideband PA driver amplifier output.
See pin 17.
See pin 17.
19
20
Ground.
Mode control pin. See the Logic Truth table.
CMOS Logic inputs: Logic 0=0V to 0.4V; Logic 1=1.4V to V
CC
.
Supply for modulator, VGA and PA driver amplifiers.
See pin 6.
21
VCC1
V
CC
V
CC
RF OUT LB N
RF OUT LB P
V
CC
V
CC
V
CC
RF OUT HB N
RF OUT HB P
V
CC
V
CC
V
CC
RF OUT WB N
RF OUT WB P
V
CC
LO Quadrature
Generator and
Buffers
VCC1
GND1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RF2705PCBA-41X | 887664400 |
| RF2713 | 887667300 |
| RF2721 | QUADRATURE DEMODULATOR |
| RF2909 | 3V 915MHZ SPREAD-SPECTRUM TRANSMITTER IC |
| RF2915 | 433/868/915MHZ FSK/ASK/OOK TRANSCEIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RF2705-000 | 制造商:TE Connectivity 功能描述:FUSE 40A 72V RESETTABLE - Bag |
| RF2705G | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER |
| RF2705G_1 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER |
| RF2705GPCBA-41X | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER |
| RF2705PB005 | 制造商:Hubbell Wiring Device-Kellems 功能描述:HAZ LOC LINKOSITY FEM, 5W, 20A |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。