參數(shù)資料
型號(hào)： LM98640W-MPR
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, CQFP68
封裝： CERAMIC, QFP-68
文件頁(yè)數(shù)： 48/50頁(yè)
文件大?。?/td> 1688K
代理商： LM98640W-MPR
Pin
Name
I/O
Typ
Res
Description
45
TXOUT0+
O
D
LVDS Data Out0+
46
TXOUT0-
O
D
LVDS Data Out0-
47
TXCLK+
O
D
LVDS Clock+
48
TXCLK-
O
D
LVDS Clock-
49
VSS18
P
Digital supply return.
50
VDD18
P
Digital power supply. Decouple with minimum 0.1F capacitor to VSS18 plane.
51
ATB0
O
A
Analog Test Bus. If not used, can be connected to VSS18 through a 10k
resistor.
52
ATB1
O
A
Analog Test Bus. If not used, can be connected to VSS18 through a 10k
resistor.
53
VDD18
P
Digital power supply. Decouple with minimum 0.1F capacitor to VSS18 plane.
54
VDD18
P
Digital power supply. Decouple with minimum 0.1F capacitor to VSS18 plane.
55
VSS18
P
Digital supply return.
56
VSS18
P
Digital supply return.
57
INCLK-
I
D
Clock Input. Inverting input for LVDS clocks.
58
INCLK+
I
D
Clock Input. Non-Inverting input for LVDS clocks.
59
VSS33
P
Analog supply return.
60
VDD33
P
Analog power supply. Decouple with minimum 0.1F capacitor to VSS33 plane.
61
VDD33
P
Analog power supply. Decouple with minimum 0.1F capacitor to VSS33 plane.
62
VSS33
P
Analog supply return.
63
IBIAS0
I
A
Connect with external 10k
1% resistor to IBIAS1 pin.
64
IBIAS1
I
A
Connect with external 10k
1% resistor to IBIAS0 pin.
65
VREFBG
O
A
Band gap reference output. Bypass with a 0.1F capacitor to VSS33. Can be
overdriven with external voltage source.
66
VSS33
P
Analog supply return.
67
VREFT1
O
A
Top of ADC reference. Bypass with a 0.1F capacitor to VSS33.
68
VREFB1
O
A
Bottom of ADC reference. Bypass with a 0.1F capacitor to VSS33.
Exp Pad
P
Exposed pad must be soldered to ground plane to ensure rated performance.
(I=Input), (O=Output), (IO=Bi-directional), (P=Power), (D=Digital), (A=Analog), (PU=Pull Up with an internal resistor), (PD=Pull Down with an internal resistor.).
7
www.national.com
LM98640QML
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