CXP88452 Datasheet, PDF (31/34 Pages) Sony Corporation – CMOS 8-bit Single Chip Microcomputer

CXP88452/88460
(5) RECCTL write circuit characteristics (AMPVDD = VDD = 5.0V, AMPVSS = Vss = 0V, Ta = –20 to +75°C)
Item
Symbol
Pins
Conditions
Write current 2.0mAp-p
Write current 3.0mAp-p
Write current 4.0mAp-p
Write current^∗1 IOREC
CTLHEAD (–)
CTLHEAD (+)
Write current 5.0mAp-p
Write current 6.0mAp-p
Write current 7.0mAp-p
Write current 8.0mAp-p
Write current 9.0mAp-p
Write current 10.0mAp-p
∗1 _{The current which flows when CTLHEAD (–) and CTLHEAD (+) shorts.}
Min. Typ. Max. Unit
0.8 1.8 3.6
1.4 2.8 5.0
2.0 3.8 7.0
2.4 4.8 8.5
3.0 6.0 10.0 mA
3.5 6.8 11.5
4.5 7.8 13.0
5.0 8.8 15.0
5.5 7.7 17.0
(6) Auto threshold control circuit (ATC) characteristics
(AMPVDD = VDD = 5.0V, AMPVSS = Vss = 0V, Ta = –20 to +75°C)
Item
Symbol Pins
Conditions
Min. Typ. Max. Unit
ATC peak hold circuit
initialize voltage value^∗2
VATCINIT
Voltage = –150mV0-P
Voltage = –400mV0-P
–110 –150 –190
mV
–350 –400 –450
Gain = 1/6 (16.7%)
–70 –160
Gain = 1/5 (20%)
–90 –210
ATC comparator level
offset voltage^∗3
VATCOFF
Gain = 1/4 (25%)
Gain = 1/3 (33.3%)
Gain = 2/5 (40%)
–90 –210
–70 –160 mV
–90 –210
Gain = 1/2 (50%)
–70 –160
Gain = 3/5 (60%)
–90 –210
∗2 _{Reference is CTLAGND.}
∗3 _{Reference is CTLAGND.}
When comparator level is generated using ATC, actual comparator level is as follows by the offset voltage
inside of ATC.
Vin × gain + |offset voltage|
Example: Gain = 1/2
Vin × 1/2 + 160
(7) Schmitt characteristics
(AMPVDD = VDD = 5.0V, AMPVSS = Vss = 0V, Ta = –20 to +75°C)
Item
Symbol Pins
Conditions
Min. Typ. Max. Unit
RTG schmitt width
CFG/DFG/DPG
SRFG
SCFG
SDFG
SDPG
RFG0,
RFG1 ^{Schmitt width 1Vp-p}
CFG,
DFG,
DPG
Schmitt width 410mVp-p
Schmitt width 1Vp-p
– 31 –
820 920 1020 ^mV
180 300 420
mV
700 900 1100