MAX2112CTI+ Maxim Integrated Products, MAX2112CTI+ Datasheet - Page 12

• Manufacturer Part Number: MAX2112CTI+
• Description: RF Receiver Direct Conversion Tu ner for DVB-S2 -40 t
• Manufacturer: Maxim Integrated Products

Specifications of MAX2112CTI+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Complete, Direct-Conversion
Tuner for DVB-S2 Applications
Table 11. Control Register
Table 12. Shutdown Register
12
BIT NAME
BIT NAME
BBG[3:0]
RFVGA
PWDN
RFMIX
STBY
VCO
PLL
DIV
BB
FE
______________________________________________________________________________________
X
X
X
BIT LOCATION (0 = LSB) DEFAULT
BIT LOCATION (0 = LSB) DEFAULT
3-0
7
6
5
4
7
6
5
4
3
2
1
0
0000
0
X
0
X
X
0
0
0
0
0
0
0
Software standby control.
0 = Normal operation.
1 = D i sab l es the si g nal p ath and fr eq uency synthesi zer l eavi ng onl y the 2- w i r e
b us, cr ystal osci l l ator , X TALOU T b uffer , and X TALOU T b uffer d i vi d er acti ve.
Don’t care.
Factory use only.
0 = Normal operation;
other value is not tested.
Don’t care.
Baseband gain setting (1dB typical per step).
0000 = Minimum gain (0dB, default).
…
1111 = Maximum gain (15dB typical).
Don’t care.
PLL enable.
0 = Normal operation.
1 = Shuts down the PLL. Value not tested.
Divider enable.
0 = Normal operation.
1 = Shuts down the divider. Value not tested.
VCO enable.
0 = Normal operation.
1 = Shuts down the VCO. Value not tested.
Baseband enable.
0 = Normal operation.
1 = Shuts down the baseband. Value not tested.
RF mixer enable.
0 = Normal operation.
1 = Shuts down the RF mixer. Value not tested.
RF VGA enable.
0 = Normal operation.
1 = Shuts down the RF VGA. Value not tested.
Front-end enable.
0 = Normal operation.
1 = Shuts down the front-end. Value not tested.
FUNCTION
FUNCTION