参数资料
型号: AD9277BSVZ
厂商: Analog Devices Inc
文件页数: 38/48页
文件大小: 0K
描述: IC ADC 14BIT LNA/VGA/AAF 100TQFP
标准包装: 1
类型: AAF,ADC,解调器,LNA,VGA
分辨率(位): 14 b
采样率(每秒): 10M ~ 50M
数据接口: 串行,SPI?
电压电源: 模拟和数字
电源电压: 1.8V,3V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-TQFP 裸露焊盘
供应商设备封装: 100-TQFP-EP(14x14)
包装: 托盘
配用: AD9277-50EBZ-ND - BOARD EVAL FOR AD9277
AD9277
Rev. 0 | Page 43 of 48
Addr.
(Hex)
Register Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Comments
0x0F
flex_channel_input
Filter cutoff frequency control
0000 = 1.3 × 1/3 × fSAMPLE
0001 = 1.2 × 1/3 × fSAMPLE
0010 = 1.1 × 1/3 × fSAMPLE
0011 = 1.0 × 1/3 × fSAMPLE (default)
0100 = 0.9 × 1/3 × fSAMPLE
0101 = 0.8 × 1/3 × fSAMPLE
0110 = 0.7 × 1/3 × fSAMPLE
1000 = 1.3 × 1/4.5 × fSAMPLE
1001 = 1.2 × 1/4.5 × fSAMPLE
1010 = 1.1 × 1/4.5 × fSAMPLE
1011 = 1.0 × 1/4.5 × fSAMPLE
1100 = 0.9 × 1/4.5 × fSAMPLE
1101 = 0.8 × 1/4.5 × fSAMPLE
1110 = 0.7 × 1/4.5 × fSAMPLE
X
0x30
Antialiasing filter
cutoff (global).
0x10
flex_offset
X
6-bit LNA offset adjustment
10 0000 for LNA bias high, mid-high, mid-low (default)
10 0001 for LNA bias low
0x20
LNA force offset
correction
(local).
0x11
flex_gain
X
PGA gain
00 = 21 dB
01 = 24 dB (default)
10 = 27 dB
11 = 30 dB
LNA gain
00 = 15.6 dB
01 = 17.9 dB
10 = 21.3 dB
(default)
0x06
LNA and PGA gain
adjustment
(global).
0x12
bias_current
X
1
X
LNA bias
00 = high (default)
01 = mid-high
10 = mid-low
11 = low
0x08
LNA bias current
adjustment
(global).
0x14
output_mode
X
0 = LVDS
ANSI-644
(default)
1 = LVDS
low power,
(IEEE
1596.3
similar)
X
Output
invert
enable
1 = on
0 = off
(default)
Data format select
00 = offset binary
(default)
01 = twos
complement
0x00
Configures the
outputs and the
format of the data
(Bits[7:3] and
Bits[1:0] are global;
Bit 2 is local).
0x15
output_adjust
X
Output driver
termination
00 = none (default)
01 = 200 Ω
10 = 100 Ω
11 = 100 Ω
X
DCO±
and
FCO±
2× drive
strength
1 = on
0 = off
(default)
0x00
Determines LVDS
or other output
properties.
Primarily functions
to set the LVDS
span and
common-mode
levels in place of
an external resistor
(Bits[7:1] are global;
Bit 0 is local).
0x16
output_phase
X
0011 = output clock phase adjust
(0000 through 1010)
(Default: 180° relative to data edge)
0000 = 0° relative to data edge
0001 = 60° relative to data edge
0010 = 120° relative to data edge
0011 = 180° relative to data edge
0100 = 240° relative to data edge
0101 = 300° relative to data edge
0110 = 360° relative to data edge
0111 = 420° relative to data edge
1000 = 480° relative to data edge
1001 = 540° relative to data edge
1010 = 600° relative to data edge
1011 to 1111 = 660° relative to data edge
0x03
On devices that
utilize global
clock divide,
determines which
phase of the
divider output is
used to supply
the output clock.
Internal latching
is unaffected.
0x18
flex_vref
X
0 =
internal
reference
1 =
external
reference
X
0x00
Select internal
reference
(recommended
default) or
external reference
(global).
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