參數(shù)資料
型號(hào)： MAX19713ETN
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 通信及網(wǎng)絡(luò)
英文描述： 10-Bit, 45Msps, Full-Duplex Analog Front-End
中文描述： SPECIALTY TELECOM CIRCUIT, QCC56
封裝： 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-56
文件頁數(shù)： 17/37頁
文件大小： 892K
代理商： MAX19713ETN
M
IAN, as well as QAP and QAN, and set the input signal
common-mode voltage within the V
DD
/ 2 (±0.8V) Rx
ADC range for optimum performance.
Rx ADC System Timing Requirements
Figure 3 shows the relationship between the clock, ana-
log inputs, and the resulting output data. Channels IA
and QA are sampled on the rising edge of the clock sig-
nal (CLK) and the resulting data is multiplexed at the
AD0–AD9 outputs. Channel IA data is updated on the ris-
ing edge and channel QA data is updated on the falling
edge of CLK. Including the delay through the output
latch, the total clock-cycle latency is 5 clock cycles for
channel IA and 5.5 clock cycles for channel QA.
Digital Output Data (AD0–AD9)
AD0–AD9 are the Rx ADC digital logic outputs of the
MAX19713. The logic level is set by OV
DD
from 1.8V to
V
DD
. The digital output coding is offset binary (Table 1).
Keep the capacitive load on the digital outputs AD0–AD9
as low as possible (< 15pF) to avoid large digital currents
feeding back into the analog portion of the MAX19713
and degrading its dynamic performance. Buffers on the
digital outputs isolate the outputs from heavy capacitive
loads. Adding 100
Ω
resistors in series with the digital out-
puts close to the MAX19713 will help improve ADC per-
formance. Refer to the MAX19713EVKIT schematic for an
example of the digital outputs driving a digital buffer
through 100
Ω
series resistors.
During SHDN, IDLE, STBY, SPI2, and SPI4 states, digital
outputs AD0–AD9 are tri-stated.
Dual 10-Bit Tx DACs
The dual 10-bit digital-to-analog converters (Tx DACs)
operate with clock speeds up to 45MHz. The Tx DAC
digital inputs, DA0–DA9, are multiplexed on a single
10-bit transmit bus. The voltage reference determines
the Tx DAC full-scale voltage at IDP, IDN and QDP,
QDN analog outputs. See the Reference Configurations
section for setting the reference voltage.
Figure 2. Rx ADC Transfer Function
INPUT VOLTAGE (LSB)
-1
-510 -509
1024
V
REF
2 x V
REF
1 LSB =
V
REF
= V
REFP
- V
REFN
V
REF
V
R
V
R
0+ 1
-511
+510
+512
+511
-512
+509
(COM)
(COM)
O
00 0000 0000
00 0000 0001
00 0000 0010
00 0000 0011
11 1111 1111
11 1111 1110
11 1111 1101
01 1111 1111
10 0000 0000
10 0000 0001
10-Bit, 45Msps, Full-Duplex
Analog Front-End
______________________________________________________________________________________
17
Table 1. Rx ADC Output Codes vs. Input Voltage
DIFFERENTIAL INPUT
VOLTAGE
DIFFERENTIAL INPUT (LSB)
OFFSET BINARY (AD0–AD9)
OUTPUT DECIMAL CODE
V
REF
x 512/512
V
REF
x 511/512
V
REF
x 1/512
V
REF
x 0/512
-V
REF
x 1/512
-V
REF
x 511/512
-V
REF
x 512/512
511 (+Full Scale - 1 LSB)
510 (+Full Scale - 2 LSB)
+1
0 (Bipolar Zero)
-1
-511 (-Full Scale + 1 LSB)
-512 (-Full Scale)
11 1111 1111
11 1111 1110
10 0000 0001
10 0000 0000
01 1111 1111
00 0000 0001
00 0000 0000
1023
1022
513
512
511
1
0
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MAX19713ETN+ 功能描述:ADC / DAC多通道 45Msps CODEC/AFE Full Duplex RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19713ETN+GH7 功能描述:ADC / DAC多通道 10-Bit 45Msps Full-Duplex Analog Front-End RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19713ETN+T 功能描述:ADC / DAC多通道 45Msps CODEC/AFE Full Duplex RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19713ETN+TGH7 功能描述:ADC / DAC多通道 10-Bit 45Msps Full-Duplex Analog Front-End RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19713ETN-T 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
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