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参数资料
| 型号： | MAX2116EVKIT+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX2116 |
| 产品培训模块： | Lead (SnPb) Finish for COTS |
| 产品变化通告： | Product Discontinuation 09/Jan/2012 |
| 标准包装： | 1 |
| 类型： | 调谐器 |
| 频率： | 850MHz ~ 2.175GHz |
| 适用于相关产品： | MAX2116 |
| 已供物品： | 板 |
Complete DBS Direct-Conversion Tuner ICs
with Monolithic VCOs
boosts the baseband output gain by 4.5dB, thus allow-
ing the output voltage swing of 1V P-P . Output clipping
levels are typically 2V P-P differential.
DC Offset Compensation IDC± and QDC±
The baseband highpass response is set through a capac-
itor connected between IDC+ and IDC- for the I channel
and QDC+ and QDC- for the Q channel. The 3dB high-
pass bandwidth is determined by the following equation:
F3dB (highpass in Hz) = 1 / (11.75k Ω ? C), C in farads
To reduce the potential for baseband spurious pickup,
keep the connection between the DC compensation
capacitors and the IDC± and QDC± pins as short as
possible by placing the capacitors as close to the
device as manufacturing allows.
VREG1 and VREG2
The MAX2116/MAX2118 include two 2.85V voltage reg-
ulator outputs, with a maximum source current rating of
3mA each. These outputs ease the interface to low-volt-
age demodulators by providing a clean pullup termina-
tion for open-drain/collector outputs. VREG1 is located
by the GC1 input control, with VREG2 conveniently
located between the 2-wire interface control pins.
VCO Selection
The MAX2116/MAX2118 include eight fully monolithic
VCOs to cover the entire 850MHz to 2175MHz range.
Maxim has a detailed application note that describes
the operation of the VCO system and proper selection
higher frequency crystals (>20MHz). Recommended
values are between 2k Ω and 5k Ω .
Serial Interface and
Control Registers
Programming Bits
The MAX2116/MAX2118 conform to the Philips I 2 C stan-
dard, 400kbps (fast mode), and operate as a slave.
The MAX2116/MAX2118 have eight read and write
addresses, which are determined by the logic state of the
three address-select pins (AS2, AS1, and AS0). In all
cases, the MSB is transmitted and read first (see Tables
1, 2, 3).
Programming Bit Definition
Byte 00 (Default = 03)
Bit DIV2 controls the VCO frequency divider. High level
= divide-by-2 enabled; low level = divide-by-4 enabled.
Default is DIV2 = 0 (divide-by-4 enabled).
Bits N(14)–N(8) are the 7 upper bits of the 15-bit pro-
grammable N divider, with the default value of N = 950.
The overall VCO divide ratio is:
2 14 ? N(14) + 2 13 ? N(13) … +2 5 ? N(5) + 2 4 ? N(4) + 2 3 ?
N(3) … + 2 0 ? N(0)
Byte 01 (Default = B6)
Bits N(7)–N(0) are the 8 lower bits of the 15-bit pro-
grammable N divider.
of the desired VCO. This application note is available by
request from Maxim.
Crystal Output Buffer (XTALOUT)
The on-chip crystal oscillator circuit has been designed
for operation from 4MHz to 27MHz. The crystal output
buffer amplifier is designed to nominally deliver
between 0.75V P-P and 1.5V P-P . However, it might be
necessary to add a resistor between the XTALOUT pin
and ground to increase the signal swing when using
Table 1. MAX2116/MAX2118 Write Address Byte
AS2
AS1
AS0
MSB
ADDRESS BYTE
LSB
Low
Low
Low
Low
High
High
High
High
Low
Low
High
High
Low
Low
High
High
Low
High
Low
High
Low
High
Low
High
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2116EVKIT+ | 功能描述:射频开发工具 MAX2116 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2116UGL | 功能描述:调谐器 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2116UGL-T | 功能描述:调谐器 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2116UTL | 功能描述:调谐器 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2116UTL+ | 功能描述:调谐器 Direct Conv Tuner w/Monolithic VCO RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
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