UPD784915B Datasheet, PDF (71/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
CTL amplifier (TA = 25°C, VDD = AVDD = 5 V, VSS = AVSS = 0 V)
Parameter
Symbol
Condition
CTL+, – input resistance
RICTL
Feedback resistance
RFCTL
Bias resistance
RBCTL
Minimum voltage gain
GCTLMIN
Maximum voltage gain
GCTLMAX
Gain selecting step
SGAIN
In-phase elimination ratio
CMR DC, voltage gain: 20 dB
High comparator set voltage of waveform shaping VPBCTLHS
High comparator reset voltage of waveform shaping VPBCTLHR
Low comparator set voltage of waveform shaping VPBCTLLS
Low comparator reset voltage of waveform shaping VPBCTLLR
Waveform shaping comparator Schmit width VPBSH
High comparator voltage of CTL flag S
VFSH
Low comparator voltage of CLT flag S
VFSL
High comparator voltage of CTL flag L
VFLH
Low comparator voltage of CTL flag L
VFLL
MIN.
TYP.
MAX. Unit
2
5
10
kΩ
20
50
100
kΩ
20
50
100
kΩ
17
20
22
dB
71
75
dB
1.77
dB
50
dB
VREF + 0.47 VREF + 0.50 VREF + 0.53 V
VREF + 0.27 VREF + 0.30 VREF + 0.33 V
VREF – 0.53 VREF – 0.50 VREF – 0.47 V
VREF – 0.33 VREF – 0.30 VREF – 0.27 V
150
200
250
mV
VREF + 1.00 VREF + 1.05 VREF + 1.10 V
VREF – 1.10 VREF – 1.05 VREF – 1.00 V
VREF + 1.40 VREF + 1.45 VREF + 1.50 V
VREF – 1.50 VREF – 1.45 VREF – 1.40 V
CFG amplifier (AC coupling) (TA = 25°C, VDD = AVDD = 5 V, VSS = AVSS = 0 V)
Parameter
Voltage gain 1
Voltage gain 2
CFGAMPO High-level output current
CFGAMPO Low-level output current
High comparator voltage
Low comparator voltage
Duty accuracy
Symbol
Condition
GCFG1 fi = 2 kHz, open loop
GCFG2 fi = 30 kHz, open loop
IOHCFG DC
IOLCFG DC
VCFGH
VCFGL
PDUTY Note
MIN.
TYP.
MAX. Unit
50
dB
34
dB
–1
mA
0.1
mA
VREF + 0.09 VREF + 0.12 VREF + 0.15 V
VREF – 0.15 VREF – 0.12 VREF – 0.09 V
49.7
50.0
50.3
%
Note The conditions include the following circuit and input signal.
Input signal : Sine wave input (5 mVp-p)
fi = 1 kHz
Voltage gain: 50 dB
1 kΩ
–+
22 µ F _{330 kΩ}
µ PD784916B
CFGIN
CFGAMPO
0.01µ F
CFGCPIN
71