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参数资料
| 型号： | MAX2308ETI+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 16/20页 |
| 文件大小： | 0K |
| 描述： | IC VGA DEMODULATOR 28TQFN-EP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 解调器 |
| RF 频率： | 70MHz ~ 300MHz |
| P1dB： | -9dBm |
| 噪音数据： | 6.36dB |
| 电流 - 电源： | 41.5mA |
| 电源电压： | 2.7 V |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
MSB
LSB
DATA
*SB
*START BIT MUST BE LOGIC HIGH.
CLK
RISE AND FALL REQUIRED PRIOR TO EN GOING LOW.
EN
Figure 6. 3-Wire Interface Timing Diagram
Table 4. Control Register, Default State: 0B57 h, Address: 110 b
POWER-
BIT
BIT ID
BIT NAME
UP
LOCATION
FUNCTION
STATE
0 = LSB
TM
TEST_MODE
0
12
Must be 0 for normal operation.
Logic “1” causes the charge-pump output CP_OUT to source cur-
rent when f REF /R > f VCO /M. This state is used when the VCO tune
POL
CP_POL
1
11
polarity is such that increasing voltage produces increasing fre-
quency. Logic “0” causes CP_OUT to source current when f VCO /M
> f REF /R. This state is used when increasing tune voltage causes
the VCO frequency to decrease.
TE
TC
DS
VB
VS
BD
BE
FT
IS
TEST_ENABLE
TURBO_CHARGE
DIV_SEL
VCO_BYP
VCO_SEL
BUF_DIV
BUFEN
FM_TYPE
IN_SEL
0
1
1
0
1
0
1
0
1
10
9
8
7
6
5
4
3
2
Must be 0 for normal operation.
Logic “1” activates turbocharge mode, which provides rapid fre-
quency acquisition in the PLL.
Logic “1” selects M1/R1 divide ratios. Logic “0” selects M2/R2.
Logic “1” bypasses the VCO inputs for external VCO operation.
Logic “1” selects VCO_H. Logic “0” selects VCO_L.
Logic “1” selects divide-by-2 on LOOUT port. Logic “0” bypasses
divider.
Logic “1” disables LOOUT. Logic “0” enables LOOUT.
Active in FM mode. Logic “0” selects quadrature demodulator for
FM mode. Logic “1” selects downconversion to I port.
Logic “0” selects FM input port. Logic “1” selects CDMA input.
Logic “0” enables standby mode, which shuts down the VGA and
SB
STBY
1
1
demodulator stages, leaving the VCO locked and the registers
active.
SD
SHDN
1
0
Logic “0” enables register-based shutdown. This mode shuts down
everything except the M and R latches and the serial bus.
16
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相关代理商/技术参数 |
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|---|---|
| MAX2308EVKIT | 功能描述:射频开发工具 MAX2306/8/9 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2309EGI | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| MAX2309EGI-B50070 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX2309EGI-T | 功能描述:调节器/解调器 RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
| MAX2309ETI+ | 功能描述:调节器/解调器 CDMA If VGAs & I/Q Demodulator w/VCO RoHS:否 制造商:Texas Instruments 封装 / 箱体:PVQFN-N24 封装:Reel |
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