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| 型號(hào)： | MAX2120 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Complete, Direct-Conversion Tuner for DVB-S and Free-to-Air Applications |
| 中文描述： | 完備的直接變頻調(diào)諧器，用于DVB-S和免費(fèi)廣播系統(tǒng) |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 316K |
| 代理商： | MAX2120 |
M
Complete, Direct-Conversion Tuner for DVB-S
and Free-to-Air Applications
12
______________________________________________________________________________________
BIT NAME
BIT LOCATION (0 = LSB)
DEFAULT
FUNCTION
VCO[4:0]
7–3
11001
Controls which VCO is activated when using manual VCO
programming mode. This also serves as the starting point for
the VCO autoselect mode.
VAS
2
1
VCO Autoselection (VAS) Circuit
0 = Disable VCO selection must be program through I
2
C
1 = Enable VCO selection controlled by autoselection circuit
ADL
1
0
Enables or disables the VCO tuning voltage ADC latch when
the VCO autoselect mode (VAS) is disabled.
0 = Disables the ADC latch
1 = Latches the ADC value
Enables or disables VCO tuning voltage ADC read when the
VCO autoselect mode (VAS) is disabled.
0 = Disables ADC read
1 = Enables ADC read
ADE
0
0
Table 7. VCO Register
BIT NAME
BIT LOCATION (0 = LSB)
DEFAULT
FUNCTION
LPF[7:0]
7–0
01001011
Sets the baseband lowpass filter 3dB corner frequency. 3dB
corner frequency = 4MHz + (LPF[7:0] - 12) x 290kHz.
Table 8. Lowpass Filter Register
BIT NAME
BIT LOCATION (0 = LSB)
DEFAULT
FUNCTION
STBY
7
0
Software standby control.
0 = Normal operation
1 = Disables the signal path and frequency synthesizer, leaving
only the 2-wire bus, crystal oscillator, XTALOUT buffer, and
XTALOUT buffer divider active
X
6
X
Don’t care.
PWDN
5
0
Software power-down control.
0 = Normal operation
1 = Shuts down the entire chip, but leaves the 2-wire bus active
and maintains the current register states
X
4
X
Don’t care.
BBG[3:0]
3–0
0000
Baseband gain setting (1dB typical per step).
0000 = Minimum gain (0dB)
…
1111 = Maximum gain (15dB typical)
Table 9. Control Register
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2120_10 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Complete, Direct-Conversion Tuner for DVB-S and Free-to-Air Applications |
| MAX2120CTI+ | 功能描述:調(diào)諧器 Direct Conversion Tu Ner For Dvb-S -75 To 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: |
| MAX2120CTI+T | 功能描述:調(diào)諧器 Direct Conversion Tu Ner For Dvb-S -75 To 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: |
| MAX2120EVKIT+ | 功能描述:射頻開發(fā)工具 MAX2120 Eval Kit RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| MAX2121 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Complete Direct-Conversion L-Band Tuner |
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