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參數(shù)資料
| 型號： | RF2466 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 3V CDMA/FM MIXER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC16 |
| 封裝： | 4 X 4 MM, LCC-16 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 139K |
| 代理商： | RF2466 |
6-9
RF2466
Rev A7 010717
6
M
Pin
1
Function
GND
Description
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
Control line for IF out select. A logic “l(fā)ow” enables the FM output. A
logic “high” enables the CDMA output. The threshold voltage is 1.6V,
and the pin draws less than 50
μ
A when selected.
Interface Schematic
2
IF SELECT
3
PD
Power down pin. A logic “l(fā)ow” (<1.6V) turns the part off. A logic “high”
(>1.6V) turns the part on. In addition, pin 2 (IF SELECT) should also be
taken low during power down.
4
LO+
Mixer LO balanced input pin. For single-ended input operation, this pin
is used as an input and pin 5 is bypassed to ground.
5
6
LO-
GND
Same as pin 4 except complementary input.
See pin 4.
Ground connection for the mixer. For best performance, keep traces
physically short and connect immediately to ground plane.
Mixer RF input pin. This pin is internally DC-biased and should be DC
blocked if connected to a device with DC present. External matching
network sets RF and IF impedance for optimum performance.
7
MIXER IN
8
BYPASS
Internal voltage reference. External RF and IF bypassing is required.
The trace length between the pin and the bypass capacitors should be
minimized. The ground side of the bypass capacitors should connect
immediately to ground plane.
Same as pin 1.
9
GND
GND
VCC
10
11
Same as pin 1.
Supply voltage for the mixers, bias circuits, and control logic. External
RF and IF bypassing is required. The trace length between the pin and
the bypass capacitors should be minimized. The ground side of the
bypass capacitors should connect immediately to ground plane.
12
FM-
Same as pin 13, except complimentary output. For typical single ended
operation, this pin is connected directly to V
CC
.
FM IF output pin. This is a balanced output, but is typically used as a
single-ended output. The internal circuitry, in conjunction with an exter-
nal matching/bias inductor to V
CC
, sets the operating impedance. This
inductor is typically incorporated in the matching network between the
output and IF filter. The net output impedance, including the external
inductor, is about 870
at 85MHz. Because this pin is biased to V
CC
, a
DC blocking capacitor must be used if the IF filter input has a DC path
to ground. See Application Schematic.
Same as pin 1.
See pin 13.
13
FM+
14
15
GND
CDMA+
CDMA IF output pin. This is a balanced output. The internal circuitry, in
conjunction with an external matching/bias inductor to V
CC
, sets the
operating impedance. This inductor is typically incorporated in the
matching network between the output and IF filter. The net output
impedance, including the external inductor, at 85MHz is higher than
1k
, even though the part is designed to drive a 1k
load. Because
this pin is biased to V
CC
, a DC blocking capacitor must be used if the IF
filter input has a DC path to ground. See Application Schematic.
Same as pin 15, except complementary output.
16
CDMA-
See pin 15.
C1
50 k
PD
50 k
LO IN+
LO IN-
MIX IN
LO OUT
VCC2
BIAS
IF2-
IF2+
2.1 k
8.5 pF
IF1-
IF1+
1.2
pF
1.2
pF
GND2
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| RF2469 | W-CDMA AND PCS LOW NOISE AMPLIFIER/MIXER DOWNCONVERTER |
| RF2472 | 2.4GHZ LOW NOISE AMPLIFIER WITH ENABLE |
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| RF2480 | DIRECT QUADRATURE MODULATOR |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RF2468-000 | 功能描述:可復(fù)位保險(xiǎn)絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
| RF2469 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:W-CDMA AND PCS LOW NOISE AMPLIFIER/MIXER DOWNCONVERTER |
| RF2471-000 | 功能描述:可復(fù)位保險(xiǎn)絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C |
| RF2472 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:2.4GHZ LOW NOISE AMPLIFIER WITH ENABLE |
| RF2472_06 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:2.4GHz LOW NOISE AMPLIFIER WITH ENABLE |
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