SC900841JVKR2 Freescale Semiconductor, SC900841JVKR2 Datasheet - Page 158

• Manufacturer Part Number: SC900841JVKR2
• Description: IC POWER MGT 338-MAPBGA
• Manufacturer: Freescale Semiconductor

Specifications of SC900841JVKR2

• Applications: PC's, PDA's
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 338-TBGA
• Input Voltage: 2.8 V to 4.4 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

range to the input range of the ADC. Note that the 10 bit ADC
core will convert over the entire scaled version of the input
channel, so always from a 2.40 V full scale.
may be used to scale down the voltage to be measured to the
ADC input range. The source resistance presented by this
may be greater than the maximum specified Rs, see ADC
Section on
lower than expected due to the dynamic input impedance of
the ADC converter. This readout error presents itself as a
Table 97. Possible Reserved Channels Usage
158
900841
Table 96. ADC Inputs
FUNCTIONAL DEVICE OPERATION
ADC SUBSYSTEM
Notes
31.
Channel
Some of the internal signals are first scaled to adapt the
For some applications, an external resistor divider network
Channel
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
22
23
Equivalent to -3.0 to +3.0 A of current with a 20 mOhm sense resistor
Table
SELECT[4:0]
3. In that case, the readout value will be
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
Application Supply (V
ADC Input Signal
Reserved
General Purpose ADIN10
General Purpose ADIN11
General Purpose ADIN12
General Purpose ADIN13
General Purpose ADIN14
General Purpose ADIN15
General Purpose ADIN16
General Purpose ADIN17
General Purpose ADIN18
General Purpose ADIN19
General Purpose ADIN20
General Purpose ADIN21
ADC Input Signal
Touch screen X+
Touch screen Y+
Touch screen X-
Touch screen Y-
PWR
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
)
gain error which can be compensated for by factory phasing.
An alternative is to place a 100 nF bypass capacitor at the
ADIN input concerned.
RESERVED CHANNELS POSSIBLE USAGE
associated with an specific function. The remaining channels
are currently designated as reserved channels for future
needs.
channels for additional flexibility.
Input Level
Only 22 of the possible 32 ADC channels are currently
Reserved
0 – 4.8 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
0-200 mV / 0-2.0 V
Table 97
Input Level
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0 – 1.2
0 – 1.2
0 – 1.2
0 – 1.2
is a proposed usage for some of these
Analog Integrated Circuit Device Data
Reserved
Scaling
/2
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Scaling
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
10x / 1x
x2
x2
x2
x2
Freescale Semiconductor
Scaled Version
Scaled Version
Reserved
0 – 2.4 V
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V
0 – 2.4 V