
1998 Oct 06
29
Philips Semiconductors
Preliminary specication
Universal Serial Bus (USB)
Digital-to-Analog Converter (DAC)
UDA1321
RECOMMENDED OPERATING CONDITIONS
DC CHARACTERISTICS
VDD = 3.3 V; VSS =0V; Tamb =25 °C; fosc = 48 MHz; fs = 44.1 kHz; unless otherwise specied.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VDD
supply voltage
3.0
3.3
3.6
V
VI
DC input voltage for D+ and D
0.0
VDD
V
VI/O
DC input voltage for the digital I/Os
0.0
VDD
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VDDE
digital supply voltage I/O pins
3.0
3.3
3.6
V
VDDI
digital supply voltage core
3.0
3.3
3.6
V
VDDA
analog supply voltage
3.0
3.3
3.6
V
VDDO
operational amplier supply voltage
3.0
3.3
3.6
V
VDDX
crystal oscillator supply voltage
3.0
3.3
3.6
V
IDDE
digital supply current I/O pins
note 1
3
mA
IDDI
digital supply current core
36
mA
IDDA
analog supply current
4.2
mA
IDDO
operational amplier supply current
4.0
mA
IDDX
crystal oscillator supply current
2.1
15.0(2)
mA
Ptot
total power dissipation
165
mW
Ptot(ps)
total power dissipation in
power-save mode
note 3
60
mW
Inputs/outputs D+ and D
VI
static DC input voltage
0.5
VDDI
V
VOH
static DC output voltage HIGH
RL =15k to ground 2.8
VDDI
V
VOL
static DC output voltage LOW
RL = 1.5 k to 3.6 V
0.3
V
ILO
high impedance state data line
output leakage current
10
A
VI(dif)
differential input sensitivity
0.2
V
VCM(dif)
differential common mode voltage
0.8
2.5
V
VSE(RX)th
single-ended receiver threshold
voltage
0.8
2.0
V
CI(TRX)
transceiver input capacitance
pin to ground
20
pF
Digital inputs/outputs
VIL
LOW-level input voltage
0.3VDDI
V
VIH
HIGH-level input voltage
0.7VDDI
VDDI
V
VOL
LOW-level output voltage
0.4
V
VOH
HIGH-level output voltage
VDDI 0.4
V
ILI
input leakage current
1
A
Ci
input capacitance
pin to ground
5pF