ISL58792 Datasheet, PDF (9/16 Pages) Intersil Corporation – Laser Diode Driver with Serial Control and Write Current DAC

ISL58792
HFM (High Frequency Modulator) Standard conditions unless otherwise noted. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
MAX
(Note 13) TYP (Note 13) UNIT
SS_-WIDTH-78h
Spread Spectrum Spreading Width
R_FREQ = 4.7kReg 1-18 = 78h,
1.7
2.8
4
%
Reg 0-16 = 26h; Reg X-00 bit 6 = 0
SS_Shift
Shift of Center Frequency when SS is
R_FREQ = 4.7kReg 1-18 = 00h to
1.4
%
Enabled vs when it’s Disabled
40h, Reg 0-16 = 26h; Reg X-00
bit 6 = 0
SS_Mod
Spread Spectrum Modulation Frequency
REG 1-18h Bit 7 = 0; Reg X-00
bit 6 = 0
50
76
105
kHz
SS_Mod
Spread Spectrum Modulation Frequency
REG 1-18h Bit 7 = 1; Reg X-00
bit 6 = 0
25
44
65
kHz
Serial Interface AC Performance Standard conditions unless otherwise noted.
PARAMETER
F_SER
t_EH
t_EL
t_ERSR
t_CDS
t_CDH
t_SREF
t_CC
Duty
t_CDD
t_EDH
DESCRIPTION
CONDITIONS
SCLK Operating Range
Static logic not limited at low frequency
SEN “H” Time
@ 50MHz
SEN “L” Time
@ 50MHz
SEN Rising Edge to the First SCLK Rising Edge @ 50MHz
SDIO Set Up Time
@ 50MHz
SDIO Hold Time
@ 50MHz
Last SCLK Rising Edge to SEN Falling Edge
@ 50MHz
SCLK Cycle Time1
@ 50MHz
SCLK “H” Duty Cycle
@ 50MHz
SDIO Output Delay
@ 50MHz
SDIO Output Hold Time
@ 50MHz
MIN
(Note 13)
320
160
10
10
20
40
2
MAX
TYP (Note 13)
50
10
10
50
60
4
UNIT
MHz
ns
ns
ns
ns
ns
ns
ns
%
ns
ns
LVDS Specifications Standard conditions unless otherwise noted.
PARAMETER
DESCRIPTION
CONDITIONS
MIN
MAX
(Note 13) TYP (Note 13) UNIT
V_IN-HIGH
V_IN-LOW
R_IN
V_MIN
Maximum Single Line Voltage
Minimum Single Line Voltage
Input Resistance
Minimum Differential Voltage
2.4
V
0
V
85
100
115

Signal tested with ±240mV differential input 240
mV_PK
Submit Document Feedback
9
FN7580.3
December 14, 2015