66-MHz Electrical Characteristics
MPC561/MPC563 Reference Manual, Rev. 1.2
G-50
Freescale Semiconductor
G.15 QADC64E Electrical Characteristics
Table G-16. QADC64E Conversion Characteristics
Note:
(V
DD
= 2.6 V
±
0.1 V, V
DDH
= 5.0 V
±
0.25 V, T
A
= T
L
to T
H
)
Num
Parameter
Symbol
Min
Max
Units
97
QADC Clock (QCLK) Frequency
1
1
Conversion characteristics vary with F
QCLK
rate. Reduced conversion accuracy occurs at max F
QCLK
rate.
F
QCLK
0.5
3.0
MHz
98
Conversion Cycles
2
Legacy mode: QADCMCR[FLIP] = 0
Enhanced mode: QADCMCR[FLIP] = 1
2
The number of conversion cycles is dependent on the IST bit in the CCW register.
CC
CC
12
14
28
20
QCLK cycles
QCLK cycles
99
Conversion Time
F
QCLK
= 2.0 MHz
1
Legacy mode: QADCMCR[FLIP] = 0
Min = CCW[IST] =0b00, CCW[BYP] = 0
Max = CCW[IST] =0b11, CCW[BYP] = 1
Enhanced mode: QADCMCR[FLIP] = 1
Min = CCW[IST] =0b0
Max = CCW[IST] =0b1
T
CONV
6.0
7.0
14
10
µ
s
µ
s
µ
s
µ
s
100
Stop Mode Recovery Time
T
SR
—
10
µ
s
101
Resolution
3
3
At V
RH
– V
RL
= 5.12 V, one count = 5 mV.
—
5
—
mV
102
Absolute (total unadjusted) error
4, 5, 6, 7
F
QCLK
= 2.0MHz
3
, 2 clock input sample time
4
Accuracy tested and guaranteed at V
RH
– V
RL
= 5.0 V ± 0.25 V
5
This parameter is periodically sampled rather than 100% tested.
6
Absolute error includes 1/2 count (~2.5 mV) of inherent quantization error and circuit (differential, integral, and
offset) error. Specification assumes that adequate low-pass filtering is present on analog input pins — capacitive filter
with 0.01
µ
F to 0.1
µ
F capacitor between analog input and analog ground, typical source isolation
impedance of 10 K
Ω
.
7
Input signals with large slew rates or high frequency noise components cannot be converted accurately. These signals
may affect the conversion accuracy of other channels.
AE
-2
2
Counts
102a
Absolute (total unadjusted) error
8, 9, 10, 11
F
QCLK
= 2.0MHz
3
, 2 clock input sample time
AE
ALT
-7.8
3.5
mV
104
DC Disruptive Input Injection Current
12, 13, 14, 15, 16
I
INJ
17
I
INJ
18
-3
19
-1
3
1
m
Α
mA
105
Current Coupling Ratio
20
PQA
PQB
K
—
—
8x10
-5
8x10
-5
106
Incremental error due to injection current
All channels have same 10K
Ω
< Rs <100k
Ω
Channel under test has Rs=10K
Ω
, I
INJ
=+3mA
E
INJ
+1.0
+1.0
Counts
Counts
107
Source impedance at input
21
R
S
—
100
K
Ω
107a
Incremental capacitance during Sampling
22
C
SAMP
—
5
pF
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...