WM2636
Production Data
PIN CONFIGURATION
VDD
DIN
SCLK
NCS
FS
1
2
3
4
8
7
6
5
OUT
REF
AGND
PIN DESCRIPTION
PIN NO
NAME
DIN
TYPE
DESCRIPTION
1
2
3
4
5
6
7
8
Digital input
Digital input
Digital input
Digital input
Supply
Serial data input.
SCLK
NCS
FS
Serial clock input.
Chip select. This pin is active low.
Frame synchronisation for serial input data.
Analogue ground.
AGND
REF
OUT
VDD
Analogue I/O
Analogue reference voltage input/output.
Analogue output DAC analogue output
Supply 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
MIN
MAX
7V
Supply voltage, VDD to AGND
Digital input voltage
-0.3V
-0.3V
VDD + 0.3V
VDD + 0.3V
Reference input voltage
Operating temperature range, TA
WM2636CD
WM2636ID
0°C
-40°C
70°C
85°C
Storage temperature
-65°C
150°C
260°C
Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
VDD
VIH
TEST CONDITIONS
MIN
2.7
2
TYP
MAX
UNIT
V
Supply voltage
5.5
High-level digital input voltage
Low-level digital input voltage
Reference voltage to REF
Load resistance
VDD = 2.7V to 5.5V
VDD = 2.7V to 5.5V
See Note
V
VIL
0.8
V
VREF
RL
VDD - 1.5
V
2
10
kΩ
pF
Load capacitance
CL
100
20
Serial clock rate
FSCLK
TA
MHz
Operating free-air temperature
WM2636CD
WM2636ID
0
70
85
°C
°C
-40
Note: Reference voltages greater than VDD/2 will cause saturation for large DAC codes.
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 July 1999
2
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
