參數(shù)資料
型號(hào): DS1808Z-050
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 1/17頁(yè)
文件大小: 0K
描述: IC POT DUAL LOG HV 50K 16-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 50
接片: 32
電阻(歐姆): 45k
電路數(shù): 2
溫度系數(shù): 標(biāo)準(zhǔn)值 750 ppm/°C
存儲(chǔ)器類(lèi)型: 易失
接口: I²C(設(shè)備位址)
電源電壓: 4.5 V ~ 5.5 V,±4.5 V ~ 13.2 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 管件
1 of 17
072601
FEATURES
§ Two 32-position log-tapers
§ 60dB attenuation range:
–1dB per step (12 taps)
–2dB per step (12 taps)
–3dB per step (8 taps)
–90dB low-end attenuation
§ 2-Wire Interface Control
§ Power Supply: Dual ±12V
§ Maximum Voltage Across Potentiometers:
±12V
§ Standard Resistance Value: 45kW
§ Packages: 16-Pin SOIC
§ Operating Temperature: -40
oC to +85oC
ORDERING INFORMATION
DS1808Z-050
16-Pin SOIC -40C to
+85C 45k
DS1808Z-050/T&R 16-Pin SOIC -40C to
+85C 45k
PIN ASSIGNMENT
L1
A0
VCC
W0
W
H0
CE
H1
L0
VB
1
12
11
10
9
7
13
15
6
5
4
3
2
14
A2
A1
SCL
SDA
8
GND
16
VDD
PIN DESCRIPTION
VCC
- +12V Supply
VB
- -12V Supply (substrate bias)
VDD
- 5V Digital Supply
H0, H1
- High-end Terminals
L0, L1
- Low-end Terminals
W0, W1
- Wiper Terminals
SDA
- 2-Wire Serial Data Input/Output
SCL
- 2-Wire Clock Input
/CE
- 2-Wire Interface Enable
GND
- Ground
A0, A1, A2
- Address Pins
DESCRIPTION
The DS1808 is a dual-channel, digitally controlled, log-taper potentiometer. Each potentiometer is
comprised of 32 wiper terminal positions plus a mute position. The device has three accessible
potentiometer terminals that include the high-side terminal (H), the low-side terminal (L), and the wiper
terminal (W). The resolution of the DS1808 is shown in Figure 8 and represents 1dB per step for the first
12 taps, 2dB per step for the next 12 taps and 3dB per step for the bottom 8 taps, providing a total
attenuation range of 60dB. The mute position of the DS1808 provides greater than 90dB of attenuation.
The wiper position on the resistor ladder is selected via a 6-bit register, whose value is controlled by the
industry-standard 2-wire interface. The interface consists of two control signals: SDA and SCL. The
DS1808 is available in a standard 45k
W resistor value. The DS1808 is specified to operate over the
industrial temperature range (-40oC to +85oC) and is available in the 16-pin SOIC package. The DS1808
was designed for low-cost, stereo volume control applications. The device is specified to operate from
±12V ±10% supplies and accept a maximum input signal range of ±12V.
DS1808
Dual Log Digital Potentiometer
www.maxim-ic.com
16-Pin SOIC (150-mil)
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