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

• 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
1.2
Table 1.
CX24118A_N_2
Product data sheet
N/C
VCC_VCO
VTUNE
VCC_CP
CP_OUT
XTAL_BIAS
VCC_XTAL
XTAL1
XTAL2
CKREF_OUT
VCC_DIG
GND_DIG
SDA
SCL
I_OUTN
I_OUTP
Q_OUTP
Q_OUTN
N/C
BB_REF
VCC2_BB
AGC
VCC1_BB
VCC1_RF
RF_INP
Pin Name
Pin Assignments
Pin Assignments
Pin Number
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
11
1
2
3
4
5
6
7
8
9
Table 1
Ground
Output
Output
Output
Output
Output
Output
Output
Power
Power
Power
Power
Power
Power
Power
lists the CX24118A pin names, numbers, types, and descriptions.
Type
Input
Input
Input
Input
Input
Input
Input
N/C
N/C
I/O
Not internally connected.
3.3V power supply for the VCO section.
VCO tuning voltage input. The output of the external PLL loop filter is connected to this
pin.
3.3V power supply for the charge pump section.
Charge pump output. The input of the external PLL loop filter is connected to this pin.
Crystal oscillator bias. For normal operation, leave this pin unconnected.
3.3V power supply for the crystal oscillator section.
Crystal oscillator input pins. Use a 40 MHz or 40.444 MHz third-overtone crystal
oscillator circuit.
Clock reference output. The maximum load allowed at this pin is 10 kΩ // 20 pF.
3.3 V power supply for digital section.
Digital ground.
Serial programming interface data signal. Open drain.
Serial programming interface clock signal.
The negative differential I channel output to demodulator. Zout = 1 kΩ // 10 pF.
The positive differential I channel output to demodulator. Zout = 1 kΩ // 10 pF.
The positive differential Q channel output to demodulator. Zout = 1 kΩ // 10 pF.
The negative differential Q channel output to demodulator. Zout = 1 kΩ // 10 pF.
Not internally connected.
Current reference for baseband section. Place a 698 Ω ±1% resistor to ground.
3.3 V power supply for the baseband section.
AGC control input from the demodulator, which controls the gain of the RF attenuator
and both baseband variable gain amplifiers. Zin = 10 kΩ // 20 pF.
3.3 V power supply for the baseband section.
3.3 V power supply pin for the RF section.
The positive differential RF signal input pin.
Rev. 02 — 8 September 2009
Description
Chapter 1: Pin Descriptions
CX24118A
© NXP B.V. 2009. All rights reserved.
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