WM5615
Electrical Characteristics (continued)
VDD = 5.0V ±5%, Vref = 2.048V unless otherwise stated.
Analogue Output Dynamic Performance
PARAMETER
SYMBOL
CONDITIONS
CL = 100pF RL = 10 kΩ
TA = 25oC
MIN
TYP
MAX
UNIT
Output slew rate
SR
0.3
0.5
V/µs
Output settling time
tS
TO 0.5 LSB CL = 100pF
RL = 2kΩ (see note 9)
DIN = All 0s to all 1s
Vref = 2Vpp at 1kHz +
2.048 V DC, code 512
12.5
µs
Glitch energy
Signal to noise + distortion
5
60
nV
dB
.
s
S/(N+D)
Note 9: Settling time is the time for the output signal to remain within 0.5 LSB of the final measured value for a digital
input code change from code zero to 1023 rising and 1023 to 64 falling.
Digital Input Timing Specifications
PARAMETER
SYMBOL MIN
TYP
MAX
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
Setup time, DIN before SCLK high
Hold time, DIN valid after SCLK high
Setup time, CS low to SCLK high
Setup time CS high to SCLK high
Hold time, SCLK low to CS low
Hold time, SCLK low to CS high
Pulse duration, min. chip select pulse width height
Pulse duration, SCLK low
tsu (DS)
th (DH)
45
0
tsu (CSS)
tsu (CS1)
th (CSHO)
th (CSHI)
tw(CS)
1
50
1
0
20
18
18
tw (CL)
tw (CH)
Pulse duration, SCLK high
ns
Output Switching Specification
PARAMETER
Propagation delay time
SYMBOL
tpd(DOUT) CL = 50pF
CONDITIONS
MIN
MIN
TYP
MAX
50
UNIT
ns
reference input (REFIN)
PARAMETER
CONDITIONS
TYP
MAX
UNIT
Reference feedthrough
Input code = 00
(see note 10)
-80
dB
Reference input bandwidth
Input code = 512
(see note 10)
100
kHz
Note 10: Reference feedthrough and bandwidth are measured at the DAC output with Vref input = 2Vpp at 1kHz +
2.048V DC
Wolfson Microelectronics
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
