HD404639R Datasheet, PDF (125/135 Pages) Renesas Technology Corp – 4-Bit Single-Chip Microcomputer

HD404639R Series
DTMF Characteristics (HD404638R, HD404639R, HD40A4638R, HD40A4639R: V_CC = 2.7 to 6.0 V,
GND = 0 V, T_a = –20 to +75°C; HD407A4639R: V_CC = 2.7 to 5.5 V, GND = 0 V, T_a = –20 to +75°C,
unless otherwise specified)
Item
Symbol Pin(s)
Min
Typ
Max Unit Test Condition
Notes
Tone output V_OR
TONER
500
660
voltage (1)
— mV_rms VT_ref – GND = 2.0 V, 1
R_L = 100 kΩ
Tone output V_OC
TONEC
520
690
voltage (2)
— mV_rms VT_ref – GND = 2.0 V, 1
R_L = 100 kΩ
Tone output %DIS
distortion
—
3
7 % Short circuit between 2
TONER and TONEC
R_L = 100 kΩ
Tone output dB_CR
ratio
—
2.5
— dB Short circuit between 2
TONER and TONEC
R_L = 100 kΩ
Notes: 400 kHz, 800 kHz, 2 MHz, 3.58 MHz, 4MHz, 7.16 MHz, or 8 MHz can be used as the operating
trequency (f_OSC).
1. See figure 98.
2. See figure 99.
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