ZL40518 Datasheet, PDF (10/16 Pages) Zarlink Semiconductor Inc – 3 Channel Laser Diode Driver

ZL40518
Data Sheet
Electrical Characteristics: AC Performance - Vcc = 5 V, Iout = 40 mA DC with 40 mA pulse, Tamb = 25°C, unless otherwise
specified.
Parameters
Test Conditions
Pin. Symbol Min. Typ. Max. Unit Type*
Output AC Performance
Write rise time
I_OUT =
40 mA
40 mA (read)
(10 to 90%)¹
+
14
t_RISE
1.0
ns
C
Write fall time
I_OUT = 40 mA (read) +
14
t_FALL
1.1
40 mA (10 to 90%)¹
ns
C
Output current
overshoot
I4_{O0UmT A=1}40 mA (read) +
14
OS
5
%
C
I_OUT ON propagation
/EN 50% High-Low to
14
t_ON
2.2
delay
I_OUT at 50% of final value
I_OUT OFF propagation /EN 50% Low-High to
14
t_OFF
2.0
delay
I_OUT at 50% of final value
Disable time
PWR_UP 50% High-Low 14
t_DIS
20
to Iout at 50% of final
value
ns
C
ns
C
ns
C
Enable time
PWR_UP 50% Low-High 14
t_EN
23
ns
C
to Iout at 50% of final
value
Amplifier bandwidth
I_OUT = 50 mA, all
14 BW_LCA
28
channels, -3 dB value
MHz C
Oscillator
Oscillator frequency
Osc. Temperature
coefficient
RF = 7.5 kΩ
RF = 7.5 kΩ
14
F_OSC 288 322 352 MHz
A
14 TC_OSC
+150
ppm/ C
C
Disable time oscillator OSCEN 50% High-Low to 14 T_DISO
4
I_OUT at 50% of final value
Enable time oscillator OSCEN 50% Low-High to 14 T_ENO
2
I_OUT at 50% of final value
* A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note 1: Load resistor at I_OUT 6.8 ohms, measurement with 50 ohm oscilloscope and 39 ohm series resistor.
ns
C
ns
C
10
Zarlink Semiconductor Inc.