ucb1400 NXP Semiconductors, ucb1400 Datasheet - Page 52

• Manufacturer Part Number: ucb1400
• Description: Audio Codec With Touch Screen Controller And Power Management Monitor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 60:
DV
9397 750 09611
Product data
Symbol
Touch screen
V
I
R
R
R
Voltage monitor ADC
RES
V
Z
I
LE
LE
t
t
t
t
t
Oscillator
f
LI
en
d(s)
conv
track
adcsync
osc
i
i(bias)
i(AD0-AD3)
i
gs
ps
DD
d
i
= AV
DD
Dynamic characteristics
Parameter
Bias voltage
Max. touch screen current
Max. touch screen resistance to
generate an interrupt
Ground switch on resistance
Power switch on resistance
Resolution
Full scale AD0-AD3 inputs
Input impedance
Input leakage current
Differential linearity error
Integral linearity error
ADC enable time
Sampling delay
Total conversion time
Tracking time
HIGH time ADSYNC signal
Oscillator frequency
= V
ADCP
= 3.3 V; T
amb
= 25 C; all voltage measured with respect to ground; unless otherwise specified.
…continued
Conditions
Position mode selected;
no loading
Position mode selected
Interrupt mode selected
V
V
Non-synchronization mode
(AS = 0, AVE = 0)
Synchronization mode; rising
edge ADCSYNC to sample
moment (AS = 1, AVE = 0)
AS = AVE = 0
AD0
AD3
Rev. 02 — 21 June 2002
= V
= 7.5 V
AD1
= V
AD2
=
Audio codec with touch screen controller
and power management monitor
Min
10
-
-
21
T
1
T
81.4
clk_period
clk_period
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
Typ
1.89
10
7.5
77
10
2
24.576
1
2
UCB1400
Max
2500
50
50
-
-
10
3
T
clk_period
52 of 63
Unit
V
mA
Bits
V
k
LSB
LSB
ns
MHz
A
s
s