CX24118A-12Z,557 NXP Semiconductors, CX24118A-12Z,557 Datasheet - Page 33

• Manufacturer Part Number: CX24118A-12Z,557
• Description: IC SATELLITE TUNER DGTL 36HVQFN
• Manufacturer: NXP Semiconductors
• Type: Satellite Tunerr

Specifications of CX24118A-12Z,557

• Applications: Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: 36-VQFN Exposed Pad, 36-HVQFN, 36-SQFN, 36-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935287217557

NXP Semiconductors
Register 19 – 1C
Register 1D
CX24118A_N_2
Product data sheet
VCOSel[5]
LODivSel
VCOSel[4:0]
VCOBandSel
PLLIntDiv[8:0]
PLLFracDiv[17:0]
TUNReset
BBFAmpGain[3:0]
Register
Register
Register
(Hex)
(Hex)
(Hex)
1A
1B
1C
1D
19
POR
POR
POR
00
00
00
10
00
PLLIntDiv[0]
VCO 6 Select.
0 = VCO 6 deselected.
1 = VCO 6 selected when VCOSel[4:0] = 00000b.
Local Oscillator (LO) Divider Select.
This bit, when read, indicates the LO divider selected by the auto-tuning system. When written to, this bit selects the
0 = ÷2.
1 = ÷4.
VCO Select.
These bits, when read, indicate the VCO selected by the auto-tuning system. The VCO can be manually selected by
00000b = None of these VCOs are selected.
00001b = VCO5 selected.
00010b = VCO4 selected.
00100b = VCO3 selected.
01000b = VCO2 selected.
10000b = VCO1 selected.
VCO Band Select.
This bit is common to all VCOs.
This bit, when read, indicates the VCO band selected by the auto-tuning system. When written to, this bit selects the
0 = High band.
1 = Low band.
PLL Integer Divider.
PLL Fractional Divider.
Tuning System Reset.
Setting this bit to 1 resets the auto-tuning system and starts the auto-tuning process. Write only.
Final Baseband Amplifier Gain.
0000b = 37 dB gain.
0001b = 34 dB gain.
0011b = 31 dB gain. Use this setting under all conditions.
0111b = 28 dB gain.
1111b = 25 dB gain.
This bit, when read, indicates if VCO6 is selected.
divider.
writing to these bits. Only one VCO should be selected at a time.
VCO band.
D7
D7
D7
PLLFracDiv[2:0]
D6
D6
D6
Reserved
Rev. 02 — 8 September 2009
D5
D5
D5
Chapter 3: Serial Programming Interface and Registers
TUNReset
D4
D4
D4
PLLFracDiv[10:3]
PLLIntDiv[8:1]
PLLFracDiv[17:11]
D3
D3
D3
D2
D2
D2
BBFAmpGain[3:0]
Reserved
D1
D1
D1
CX24118A
© NXP B.V. 2009. All rights reserved.
D0
D0
D0
33