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參數(shù)資料
| 型號： | MAX2104CCM |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 衰減器 |
| 英文描述： | PLASTIC ENCAPSULATED DEVICES |
| 中文描述： | RF/MICROWAVE DOWN CONVERTER |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, MS-026ABA-HD, TQFP-48 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 148K |
| 代理商： | MAX2104CCM |
M
Direct-Conversion Tuner IC for
Digital DBS Applications
6
_______________________________________________________________________________________
NAME
FUNCTION
PIN
Pin Description
2
3
4
CFLT
XTL-
XTL+
External Bypass for Internal Bias. Bypass this pin with a 0.1μF ceramic chip capacitor to GND.
Inverting Input to Crystal Oscillator. Consult crystal manufacturer for circuit loading requirements.
Noninverting Input to Crystal Oscillator. Consult crystal manufacturer for circuit loading requirements.
5, 9, 10,
15, 16, 32,
40, 41, 46
GND
Ground. Connect each of these pins to a solid ground plane. Use multiple vias to reduce inductance
where possible.
7
8
11
12
13
14
17
RFIN-
RFIN+
QDC-
QDC+
IDC-
IDC+
RFOUT
RF Inverting Input. Bypass RFIN- with 47pF capacitor in series with a 75
resistor to GND.
RF Noninverting Input. Connect to 75
source with a 47pF ceramic chip capacitor.
Baseband Offset Correction. Connect a 0.22μF ceramic chip capacitor from QDC- to QDC+ (pin 12).
Baseband Offset Correction. Connect a 0.22μF ceramic chip capacitor from QDC+ to QDC- (pin 11).
Baseband Offset Correction. Connect a 0.22μF ceramic chip capacitor from IDC- to IDC+ (pin 14).
Baseband Offset Correction. Connect a 0.22μF ceramic chip capacitor from IDC+ to IDC- (pin 13).
Buffered RF Output. Enabled when INSEL is low.
18
CPG1
Charge-Pump Gain Select. High-impedance digital input. Sets the charge-pump output scaling. See the
DC Electrical Characteristics
section for available gain settings.
20
XTLOUT
Buffered Crystal Oscillator Output
21
CPG2
Charge-Pump Gain Select. High-impedance digital input. Sets the charge-pump output scaling. See the
DC Electrical Characteristics
section for available gain settings.
22
GC1
Gain Control Input for RF Front End. High-impedance analog input, with an input range of 1V to 4V. See
the
AC Electrical Characteristics
section for transfer function.
23
GC2
Gain Control Input for Baseband Signals. High-impedance analog input, with an input range of 1V to 4V.
See the
AC Electrical Characteristics
section for transfer function.
24
INSEL
Loopthrough Mode Enable. High-impedance digital input. Drive low to enable the RFOUT buffer and
disable the internal downconverters. Connect to V
CC
for normal tuner operation.
25
FLCLK
Baseband Filter Cutoff Adjust. Connect to a slew-rate-limited clock source. See the
AC Electrical
Characteristics
section for transfer function.
26
FDOUB
LO Frequency Doubler. High-impedance digital input. Drive high to enable the LO frequency doubler.
Drive low to disable the doubling function.
27
28
30
31
QOUT-
QOUT+
IOUT-
IOUT+
Baseband Quadrature Output. Connect to inverting input of high-speed ADC.
Baseband Quadrature Output. Connect to noninverting input of high-speed ADC.
Baseband In-Phase Output. Connect to inverting input of high-speed ADC.
Baseband In-Phase Output. Connect to noninverting input of high-speed ADC.
33
MOD+
PECL Modulus Control. A PECL high on MOD+ sets the dual-modulus prescaler to divide by 32. A PECL
logic low sets the divide ratio to 33. Drive with a differential PECL signal with MOD- (pin 34).
1, 6, 19,
29, 39, 45
V
CC
V
CC
Power-Supply Input. Connect each pin to a +5V ±5% low-noise supply. Bypass each V
CC
pin to the
nearest GND with a ceramic chip capacitor.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2104CCM+ | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Direct-Conversion Tuner IC for Digital DBS Applications |
| MAX2104CCM+D | 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| MAX2104CCM+TD | 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| MAX2104CCM-D | 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
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