MAX2117CTI 데이터 시트보기 (PDF) - Maxim Integrated
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MAX2117CTI Datasheet PDF : 20 Pages
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Complete, Direct-Conversion Tuner for
MMDS Applications
Table 10. Shutdown Register
BIT NAME
X
BIT LOCATION (0 = LSB)
7
PLL
6
DIV
5
VCO
4
BB
3
RFMIX
2
RFVGA
1
FE
0
DEFAULT
X
0
Don’t care.
FUNCTION
PLL enable.
0 = Normal operation
1 = Shuts down the PLL. Value not tested.
Divider enable.
0
0 = Normal operation
1 = Shuts down the divider. Value not tested.
VCO enable.
0
0 = Normal operation
1 = Shuts down the VCO. Value not tested.
Baseband enable.
0
0 = Normal operation
1 = Shuts down the baseband. Value not tested.
RF mixer enable.
0
0 = Normal operation
1 = Shuts down the RF mixer. Value not tested.
RF VGA enable.
0
0 = Normal operation
1 = Shuts down the RF VGA. Value not tested.
RF front-end enable.
0
0 = Normal operation
1 = Shuts down the RF front-end. Value not tested.
Table 11. Test Register
BIT NAME
BIT LOCATION (0 = LSB)
CPTST[2:0]
7, 6, 5
X
TURBO
LDMUX[2:0]
4
3
2, 1, 0
DEFAULT
000
X
0
000
FUNCTION
Charge-pump test modes.
000 = Normal operation (default)
001 = Crystal translator ECL to CMOS path
100 = Both source and sink currents enabled
101 = Source current enabled
110 = Sink current enabled
111 = High impedance (both source and sink current disabled)
Don’t care.
Charge-pump fast lock. Users must program to 1 upon powering
up the device.
REFOUT output.
000 = Normal operation; other values are not tested
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