參數(shù)資料
型號: DS1800
廠商: DALLAS SEMICONDUCTOR
元件分類: 模擬信號調(diào)理
英文描述: Dual Inverting Log Gain/Attenuator(雙路反相對數(shù)放大/衰減器)
中文描述: SPECIALTY ANALOG CIRCUIT, PDIP20
封裝: 0.300 INCH, DIP-20
文件頁數(shù): 8/13頁
文件大?。?/td> 96K
代理商: DS1800
DS1800
032098 8/13
AC ELECTRICAL CHARACTERISTICS
(–40
°
C to +85
°
C; V
CC
=2.7V to 5.5V)
MAX
UNITS
PARAMETER
SYMBOL
MIN
TYP
NOTES
CLK Frequency
f
CLK
DC
10
MHz
Width of CLK Pulse
t
CH
50
ns
Data Setup Time
t
DC
30
ns
Data Hold Time
t
CDH
10
ns
Propagation Delay Time
Low to High Level
High to Low Level
t
PLH
50
ns
RST High to Clock Input High
t
CC
50
ns
RST Low from Clock Input High
t
HLT
50
ns
CLK Rise Time
t
CB
50
ns
RST Inactive
t
BLT
200
ns
AC ELECTRICAL CHARACTERISTICS
PUSHBUTTON INPUTS
(–40
°
C to +85
°
C; V
CC
=2.7V to 5.5V)
MAX
UNITS
PARAMETER
SYMBOL
MIN
TYP
NOTES
Single Pulse Input
Slow Mode
Fast Mode
t
CPW
1
50
800
ms
μ
s
3, 5, 11
Repetitive Input Pulse High Time
Slow Mode
Fast Mode
t
HPW
1
50
800
ms
μ
s
3, 5, 11
Continuous Input Pulse
t
CCP
0.8
DC
s
3, 5, 11
NOTES:
1. All voltages are referenced to ground
2. Valid for V
CC
= 5V only.
3. Both PxA and PxG inputs are internally pulled up with a 50K
resistance.
4. Capacitance values apply at 25
°
C.
5. Input pulse width is the minimum time required for an input to cause an increment or decrement of wiper position.
If the PxA or PxG inputs are held active for longer than 0.8 seconds, subsequent increments or decrements will
occur at intervals of 25 ms. Timing tolerances for pushbutton control are specified at 35%.
6. Inter–Channel Matching is used to determine the relative voltage difference in dB between the same position on
each potentiometer. The DS1800 is specified for
±
0.25 dB inter channel matching from position 0 to position 112
(+20 dB to –27 dB) and
±
0.5 dB from position 113 to position 127.
7. Tap–to–Tap tolerance is used to determine the change in voltage between successive tap positions. The DS1800
is specified for
±
0.5 dB tap–to–tap tolerance. From position 0 to position 112 (+20 dB to –27 dB). From position
113 to position 127, the DS1800 is specified for
±
1 dB tap–to–tap tolerance.
相關(guān)PDF資料
PDF描述
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DS1802 Dual Audio Taper Potentiometer with Push Button Control(帶按鈕控制的雙路音頻抽頭電位器)
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