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參數(shù)資料
| 型號： | AD6644ASTZ-65 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/24頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 65MSPS CMOS 52-LQFP |
| 標準包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 65M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 4 |
| 功率耗散（最大）： | 1.3W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -25°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 52-LQFP |
| 供應商設備封裝： | 52-LQFP（10x10） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，雙極 |
AD6644
Rev. D | Page 18 of 24
EVALUATION BOARD
The schematic of the evaluation board (see Figure 32) repre-
sents a typical implementation of the AD6644. A multilayer
board is recommended to achieve best results. It is highly
recommended that high quality, ceramic chip capacitors be
used to decouple each supply pin to ground directly at the
device. The pinout of the AD6644 facilitates ease of use in
the implementation of high frequency, high resolution design
practices. All of the digital outputs are segregated to two sides
of the chip, with the inputs on the opposite side for isolation
purposes.
Care should be taken when routing the digital output traces. To
prevent coupling through the digital outputs into the analog
portion of the AD6644, minimal capacitive loading should be
placed on these outputs. It is recommended that a fanout of
only one gate should be used for all AD6644 digital outputs.
The layout of the encode circuit is equally critical. Any noise
received on this circuitry results in corruption in the digitization
process and lower overall performance. The encode clock must be
isolated from the digital outputs and the analog inputs.
Table 10. AD6644/PCB Bill of Materials
Qty.
Reference ID1
Description
Manufacturer
Supplier Part No.
1
PCB
Printed circuit board, AD6644/AD6645 engineering
evaluation board
Moog
6645EE01D REV D
4
C1, C2, C31, C38
Capacitor, tantalum, SMT BCAPTAJC, 10 μF, 16 V, 10%
Kemet
T491C106K016AS
8
C3, C7 to C10, C16, C302, C32
Capacitor, ceramic, SMT 0508, 0.1 μF, 16 V, 10%
Presidio Components
0508X7R104K16VP3
9
C4, C15, C22 to C26, C29, (C33)3,
Capacitor, ceramic, SMT 0805, 0.1 μF, 25 V, 10%
Panasonic
ECJ-2VB1E104K
0
(C5, C6)3
Capacitor, ceramic, SMT 0805, 0.01 μF, 50 V, 10%
Panasonic
ECJ-2YB1H103K
10
C11 to C14, C17 to 21, C40
Capacitor, ceramic, SMT 0508, 0.01 μF, 50 V, 0.2%
Presidio Components
0508X7R103M2P3
0
(C27, 28)
Capacitor, ceramic, SMT 0805, select
1
Diode, dual Schottky HSMS2812, SOT-23, 30 V, 20 mA
Panasonic
MA716-(TX)
1
E1
Install jumper (across OPT_LAT and BUFLAT)
5
F1 to F5
EMI suppression ferrite chip, SMT 0805
Steward
HZ0805E601R-00
1
J1-H
Header, 6-pin, pin strip, 5 mm pitch
Wieland
Z5.530.0625.0
1
J1
Pin strip, 6-pin, 5 mm pitch
Wieland
25.602.2653.0
1
J2
Header, 40-pin, male, right angle
Samtec
TSW-120-08-T-D-RA
2
(J3), J4, J5
Connector, gold, male, COAX., SMA, vertical
Johnson Components
142-0701-201
1
L1
Inductor, SMT, 1008-ct package, 4.7 nH
Coilcraft
1008CT-040X-J
0
Resistor, thick film, SMT 0402, 100 Ω, 1/16 W, 1%
Panasonic
ERJ-2RKF1000V
0
(R2)
Resistor, thick film, SMT 1206, 60.4 Ω, 1/8 W, 1%
Panasonic
ERJ-8ENF60R4V
2
(R3 to R5)2, (R8)2, R9, R10
Resistor, thick film, SMT 0805, 500 Ω, 1/10 W, 1%
Panasonic
ERJ-6ENF4990V
2
R6 and R7
Resistor, thick film, SMT 0805, 25.5 Ω, 1/10 W, 1%
Panasonic
ERJ-6ENF25R5V
0
Resistor, thick film, SMT 0805, 66.5 Ω, 1/10 W, 1%
Panasonic
ERJ-6ENF66R5V
0
Resistor, thick film, SMT 0805, 100 Ω, 1/10 W, 1%
Panasonic
ERJ-6ENF1000V
1
R152
Resistor, thick film, SMT 0402, 178 Ω, 1/16 W, 1%
Panasonic
ERJ-2RKF1780X
1
R35
Resistor, thick film, SMT 0805, 49.9 Ω, 1/10 W, 1%
Panasonic
ERJ-6ENF49R9V
4
RN1 to RN4
Resistor array, SMT 0402; 100 Ω; 8 ISO RES.,1/4 W; 5%
Panasonic
EXB2HV101JV
2
Transformer, ADT4-1WT, CD542, 2 MHz to 775 MHz
Mini-Circuits
ADT4-1WT
1
U1
IC, 14-bit, 65 MSPS ADC, LQFP-52
Analog Devices
AD6644
2
U2, U7
IC, SOIC-20, OCTAL D-type flip-flop
Fairchild
74LCX574
0
IC, SOIC-8, low distortion differential ADC driver
Analog Devices
AD8138ARM
2
U4, U6
IC, SOT-23, tiny logic UHS 2-input or gate
Fairchild
NC7SZ32
0
IC, SOIC-8, differential receiver
Motorola
MC100LVEL16
1
Y1
Clock oscillator, 65 MHz
CTS Reeves
MX045-65
4
Y1-PS
Pin sockets, closed end
AMP
5-330808-3
4
STDOFF
Circuit board support
RICHO
CBSB-14-01
1 Reference designators in parentheses are not installed on standard units.
2 AC-coupled AIN is standard: R3, R4, R5, R8, and U3 are not installed. If dc-coupled AIN is required, C30, R15, and T3 are not installed.
3 AC-coupled encode is standard: C5, C6, C33, C34, R1, R11 to R14, and U8 are not installed. If PECL encode is required, CR1 and T2 are not installed.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD6644ASTZ-65 | 制造商:Analog Devices 功能描述:A/D Converter (A-D) IC |
| AD6644PCB | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 40 MSPS/65 MSPS A/D Converter |
| AD6644ST | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit, 40 MSPS/65 MSPS A/D Converter |
| AD6644ST/PCB | 制造商:Analog Devices 功能描述:EVALUATION BOARD ((NW)) |
| AD6644ST/PCBZ | 制造商:Analog Devices 功能描述:14-BIT, 40 MSPS/65 MSPS A/D CONVERTER 制造商:Analog Devices 功能描述:AD6644 EVALUATION BOARD - Bulk |
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