WM2638 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc
Número de pieza
componentes Descripción
Fabricante
WM2638
Wolfson Microelectronics plc
WM2638 Datasheet PDF : 11 Pages
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WM2638
PIN CONFIGURATION
DIN 1
SCLK 2
NCS 3
OUTA 4
8 VDD
7 OUTB
6 REF
5 AGND
Production Data
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
7
8
NAME
DIN
SCLK
NCS
OUTA
AGND
REF
OUTB
VDD
TYPE
Digital input
Digital input
Digital input
Analogue output
Supply
Analogue I/O
Analogue output
Supply
DESCRIPTION
Serial data input.
Serial clock input.
Chip select. This pin is active low.
DAC A analogue output.
Analogue ground.
Reference voltage input/output.
DAC B analogue output
Positive power supply.
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or
beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible to
damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage of this
device.
CONDITION
Supply voltage, VDD to AGND
Digital input voltage range to AGND
Reference input voltage range to AGND
Output voltage at OUT from external source
Operating temperature range, TA
Storage temperature
WM2638C
WM2638I
Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds
MIN
-0.3V
-0.3V
0°C
-40°C
-65°C
MAX
7V
VDD + 0.3V
VDD + 0.3V
VDD + 0.3V
70°C
85°C
150°C
260°C
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply voltage
High-level digital input voltage
Low-level digital input voltage
Reference voltage to REF
Load resistance
Load capacitance
Serial clock rate
Operating free-air temperature
VDD
VIH
VIL
VREF
RL
CL
FSCLK
TA
2.7
2
2
WM2638C
0
WM2638I
-40
Note: Reference voltages greater than VDD/2 will cause saturation for large DAC codes.
WOLFSON MICROELECTRONICS LTD
5.5
V
0.8
V
V
VDD - 1.5
V
kΩ
100
20
70
°C
85
°C
PD Rev 1.0 July 99
2
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