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TDA8023 Datasheet, PDF (18/32 Pages) NXP Semiconductors – Low power IC card interface
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NXP Semiconductors
TDA8023
Low power IC card interface
Table 17. DC-to-DC converter
VDD = 3.3 V; VDD(INTF) = 1.5 V; fCLKIN = 10 MHz; GND = 0 V; Tamb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ
fosc(int)
VVUP
internal oscillator frequency
voltage on pin VUP
5 V card
3 V card
2
2.5
5.3 5.5
3.5 4
Vdet
detection voltage
1.8 V card
on pin VDDP
5 V card; Follower mode
-
VDD(DCDC)
5.5 5.8
3 V card; Follower mode
3.8 4
5 V card; Tripler mode
-
3.5
Max
3
5.8
4.2
-
6
4.2
-
Unit
MHz
V
V
V
V
V
V
Table 18. Card drivers
VDD = 3.3 V; VDD(INTF) = 1.5 V; fCLKIN = 10 MHz; GND = 0 V; Tamb = 25 °C; unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Max
Supply voltage for the card: pin VCC[1]
Vo(inact)
inactive mode output
voltage
no load
Io(inact) = 1 mA
Io(inact)
inactive mode output
current
at grounded pin VCC
0
-
0.1
0
-
0.3
-
-
−1
VCC
supply voltage
Active mode; 2.7 V < VDD < 6.5 V
5 V card; ICC < 60 mA; VCC = 5 V
3 V card; ICC < 55 mA; VCC = 3 V
1.8 V card; ICC < 30 mA; VCC = 1.8 V
Active mode; AC current pulses with
I < 200 mA, t < 400 ns and f < 20 MHz
[2]
4.75
2.80
1.65
[2]
5
5.25
3
3.15
1.8 1.95
5 V card; current pulses of 40 nAs
4.65
-
5.35
3 V card; current pulses of 24 nAs
2.76
-
3.24
1.8 V card; current pulses of 15 nAs
1.62
-
1.98
Vripple(p-p) peak-to-peak ripple
voltage
on VCC; 20 kHz < f < 200 MHz
-
-
350
ICC
supply current
VDD > 2.7 V
5 V card; VCC = 0 V to 5 V
3 V card; VCC = 0 V to 3 V
1.8 V card; VCC = 0 V to 1.8 V
VCC shorted to GND
5 V card or 3 V card
-
-
−55
-
-
−55
-
-
−35
-
−90 −120
1.8 V card
-
−70 −90
SR
slew rate
rise or fall; maximum load capacitor
CL = 300 nF
5 V card
0.080 0.140 0.200
3 V card
0.050 0.080 0.110
1.8 V card
0.025 0.045 0.080
Unit
V
V
mA
V
V
V
V
V
V
mV
mA
mA
mA
mA
mA
V/µs
V/µs
V/µs
TDA8023_1
Product data sheet
Rev. 01 — 16 July 2007
© NXP B.V. 2007. All rights reserved.
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