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參數(shù)資料
| 型號(hào)： | MAX1007CAG |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 模擬信號(hào)調(diào)理 |
| 英文描述： | Mobile-Radio Analog Controller |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封裝： | 5.30 X 0.65 MM, SSOP-24 |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 110K |
| 代理商： | MAX1007CAG |
Applic ations Information
Precautions must be taken to minimize RF coupling
through the IC.
S hutdown Modes
At power-up, the device initializes in total shutdown
mode. The digital interface is always active. Table 2
describes the various power modes available.
When the PGA is not on (in shutdown, standby, or
receive mode, or when PKWDW is low), the PS input
pins (RPS, FPS1, FPS2) are pulled down to ground. To
minimize RF coupling, the unselected channels are
also pulled down to ground when the circuit is active.
The current source and the 1.87V PSBIAS voltage gen-
erator are turned on only when the device is performing
the transmit power-sense measurement.
Power-S upply Bypassing and
Ground Management
Optimum system performance is obtained with printed
circuit boards that use separate analog and digital
ground planes. Wire-wrap boards are not recommend-
ed. The two ground planes should be connected
together at the low-impedance power-supply source.
Bypass AV
DD
with a 0.1μF ceramic capacitor connect-
ed between AV
DD
and AGND. Mount it with short leads
close to the device. Similarly bypass DV
DD
with a 0.1μF
ceramic capacitor connected between DV
DD
and
DGND. Ferrite beads may also be used to further iso-
late the analog and digital power supplies.
M
Mobile-Radio Analog Controller
______________________________________________________________________________________
11
ADCCTRL
R
RSSI
RPS
FPS1
FPS2
PSBIAS
PSDWDW
BANT
t
10
t
11
OLD DATA
VALID
Figure 4c. Power-Sense/Best-Antenna Detailed Interface
RxEN,
TxEN
DESCRIPTION
0 0
0 1
1 0
Total shutdown
Transmit mode, all DACs enabled
Receive mode, SDAC and GDAC outputs disabled
1 1
Standby: REF, GDAC, and XDAC enabled. Rest of
IC is shut down.
Table 2. Power Modes
CS
SCLK
DIN
START
A2
A1
A0 RxEN
COMMAND BYTE
TxEN SD
LD
D7
D6
D5
D4
D3
D2
D1
D0
CS
SCLK
DIN
START
A2
A1
A0 RxEN TxEN SD
LD
DOUT
WRITE
READ
D7
D6
D5
D4
D3
D2
D1
D0
COMMAND BYTE
Figure 4d. Serial-Interface Timing
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|---|---|
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| MAX100CFR | 制造商:Maxim Integrated Products 功能描述:250MSPS, 8-BIT ADC WITH TRACK/HOLD - Bulk |
| MAX100CFR1 | 制造商:Maxim Integrated Products 功能描述:250MSPS, 8-BIT ADC WITH TRACK/HOLD - Bulk |
| MAX100EVKIT | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Evaluation Kit for the MAX100 |
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