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参数资料
| 型号： | WE905 |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 0.1 - 1GHx Single Chip FM Transceiver |
| 中文描述： | 0.1 - 1GHx单芯片FM收发器 |
| 文件页数： | 29/39页 |
| 文件大小： | 623K |
| 代理商： | WE905 |
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Winceiver WE904/WE905
WiNEDGE & WiRELESS
0.1 - 1GHz Single Chip FM Transceiver
2003 WiNEDGE & WiRELESS PTE LTD
Page 35
Rev Date: 2003 May 27
Other Modes for WE905
Mode Bits
Other Mode for WE905
5 4 3 2 1
X X 0 1 0 Tx Charge Pump Disable
Tx charge pump is disable to allow open loop TX VCO modulation.
X X 1 0 0
I Baseband Filter Test
I baseband filter output route to AUDO (analogue)
Only for Analogue output select
The I Baseband output of the Quadrature mixer is a sinusoidal waveform
that center at approx. 1.34Vdc and amplitude depends on the injected RF
signal strength.
The amplitude is about 350mVpp at -80dBm RF_IN power.
X X 1 0 1
Q Baseband Filter Test
Q baseband filter output route to AUDO (analogue)
Only for Analogue output select
The Q Baseband output of the Quadrature mixer is a sinusoidal waveform
that center at approx. 1.34Vdc and amplitude depends on the injected RF
signal strength.
The amplitude is about 350mVpp at -80dBm RF_IN power.
X X 1 1 0
2
nd Mixer Test
2
nd mixer output route to AUDO (analogue)
Only for Analogue output select
The 2nd mixer output is a sinusoidal waveform at frequency
Fif (= Frf / PDR / 544) +/- FM Dev.
The amplitude is about 280mVpp at -80dBm RF_IN power.
X X 0 1 1
Reference Oscillator On
This mode allows the reference oscillator to be kept active when both Tx
and Rx are off so that faster PLL lock can be achieved when either Tx or
Rx is turned on.
PROGRAMMING EXAMPLES
e.g
Manual gain, AGC off
Rx on, Tx off,
1.0mA Rx charge pump current
normal Rx charge pump polarity,
10dB RF mixer attenuation, 20dB baseband attenuation, no RF pad
AFC enable, normal AFC polarity (WE904),
Analogue AUDO,
Normal mode,
ignore signal evaluation period, Tse (auto gain only)
Programming word = 0XX000 010 01110 X0 X1 01 0 11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| WE9104 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Pulse Telephone Dialer |
| WE9110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Pulse Telephone Dialer |
| WE9140 | 制造商:WINBOND 制造商全称:Winbond 功能描述:TONE/PULSE SWITCHABLE DIALER WITH REDIAL |
| WE9140A | 制造商:WINBOND 制造商全称:Winbond 功能描述:TONE/PULSE SWITCHABLE DIALER WITH REDIAL |
| WE9140B | 制造商:WINBOND 制造商全称:Winbond 功能描述:TONE/PULSE SWITCHABLE DIALER WITH REDIAL |
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