參數(shù)資料
型號: ADS62C17IRGC25
廠商: Texas Instruments
文件頁數(shù): 41/68頁
文件大?。?/td> 0K
描述: IC ADC 11BIT 200MSPS DUAL 64VQFN
標準包裝: 25
位數(shù): 11
采樣率(每秒): 200M
數(shù)據接口: 串行,并聯(lián)
轉換器數(shù)目: 2
功率耗散(最大): 1.1W
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤
供應商設備封裝: 64-VQFN 裸露焊盤(9x9)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個差分,單極
INP
INM
VCM
1:1
15 W
0.1uF
1:1
22 pF
25 W
50 W
39 nH
0.1 F
m
0.1 F
m
0.1 F
m
50 W
25 W
15 W
50 W
INP
INM
VCM
1:1
3.3 pF
0.1 F
m
0.1 F
m
0.1 F
m
0.1 F
m
25 W
5 W
50 W
INP
INM
VCM
0.1 F
25
0.1 F
T1
T2
SLAS631A – APRIL 2009 – REVISED JULY 2009 ............................................................................................................................................................. www.ti.com
Figure 46. Drive Circuit With Low Bandwidth (for low input frequencies)
The mismatch in the transformer parasitic capacitance (between the windings) results in degraded even-order
harmonic performance. Connecting two identical RF transformers back to back helps minimize this mismatch and
good performance is obtained for high frequency input signals. An additional termination resistor pair may be
required between the two transformers as shown in the figures. The center point of this termination is connected
to ground to improve the balance between the P and M sides. The values of the terminations between the
transformers and on the secondary side have to be chosen to get an effective 50
(in the case of 50 source
impedance).
Figure 47. Drive Circuit With High Bandwidth (for high input frequencies)
Figure 48. Drive circuit with very high bandwidth (> 300 MHz)
46
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): ADS62C17
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