Marantz SR620 - Page 19

®- Pin Description
Functional Description Remarks
L/D
Output state switching signal input. Signal input
for switching output state by displays (LED, FL
and LCD).
Data
Receiving frequency data signal input. Signal is
input in serial from system controller.
CKi, CK2
Timing clock signal input.
1/0
Segment drive signal output. For FM the digit
of 100 MHz and for AM that of 1000 kHz are
displayed respectively. Since both FM and AM
are 1 or O, one pin only is sufficient for output.
With built-intransistors of
high resisting voltage and
large current flow.
7-segment drive signal output. Digits of 10 MHz
for FM and those of 100 kHz for AM are displayed,
respectively
With built-intransistors of
high resisting voltage and
large current flow.
13,15~20
7-segment drive signal output. Digits of 1 MHz for
FM and those of 10kHz for AM and displayed,
respectively.
With built-intransistors of
high resisting voitage and
large current flow.
Vec, GND
7-segment drive signal output. Digits of 100 kHz
for AM and those of 1 kHz for AM are displayed,
respectively.
Power supply GND.
@ Electrical Characteristics (Unless otherwise specified, Vcc = 5V, Ta= 25°C)
Characteristic
Operating Supply Voltage Range
Test
Circuit
Test
Condition
Ta=—30 ~ 75°C
Operating Supply Current
——-}
No load
5 eee
With built-intransistors of
high resisting voltage and
large current flow.
| min. | Typ. | Max. | Unit
| 45 | 50 155 | V
“HY” Level
Vino Data, CK;, CK2, L/D
Input Voltage
“L’ Level
Vin Data, CK,, CK2, L/D
“H" Level
Input Current
iw Data, Vip =5V
“L’ Level
Nie Data, Vi, =O0V
Output Current
a1 ~ 91, a2 ~ 92,43 ~Q3,
l
: 1/0
Output Saturation Voltage
Ve (sat) 1/0, lo. =15mA
a1 ~ 91, 42 ~ 92,43 ~ 93,
Timing input Operating
Frequency
fopr Data, CKy j CK2
Receiving frequency data in serially transfered to TD6301 AP through DATA, CK1 and CK2 terminals.
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