SM8761 查看數據表（PDF） - Nippon Precision Circuits
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SM8761 Datasheet PDF : 11 Pages
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SM8761 series
Function Controls
The SM8761 series power-down and SS modulation ON/OFF functions are controlled using the MSEL0 and
MSEL1 input pins as shown in Table 1.
SM8761AA
MSEL1 (Pin 7)
MSEL0 (Pin 6)
Input/Output
frequency range [MHz]
SS mode
SS modulation*1 [%]
L
L
–2.3
L
M
–3.2
L
H
20 to 54
(Low range)
Down spread
−2.8
M
L
–1.9
M
M
–3.8
M
H
–2.5
H
H
L
M
50 to 108
(High range)
Down spread
–1.9
–1.0
H
H
–1.2
*1. The modulation rates in the table above are reference values at 30MHz to 40MHz (Low range) and 70MHz to 80MHz (High
range). The modulation rate varies with the input/output frequency.
Note. Signal level “H” represents VDD level, “L” represents VSS level, and “M” represents 1/2VDD.
SM8761AB
MSEL1 (Pin 7)
MSEL0 (Pin 6)
Input/Output
frequency range [MHz]
SS mode
SS modulation*1 [%]
L
L
± 1.25
L
L
M
H
12 to 18
(Low range)
Center spread
± 0.75
± 1.75
M
L
M
M
(reserved)*2
± 2.25
M
H
± 2.25
H
H
L
M
18 to 32
(High range)
Center spread
± 1.25
± 0.75
H
H
± 1.75
*1. The modulation rates in the table above are reference values at 12MHz (Low range) and 24MHz (High range). The modula-
tion rate varies with the input/output frequency.
*2. If MSEL1 (pin 7) and MSEL0 (pin 6) are both simultaneously "M" level, then SM8761AB operation cannot be guaranteed.
Note. Signal level “H” represents VDD level, “L” represents VSS level, and “M” represents 1/2VDD.
NIPPON PRECISION CIRCUITS INC.—8
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