ACS406CS Semtech Corporation, ACS406CS Datasheet - Page 19

• Manufacturer Part Number: ACS406CS
• Description: Two-chip Fiber Optic Modem Ics / ACS4060 100-pin Tqfp, ACS9010 44-pin TQFP
• Manufacturer: Semtech Corporation

Single Fiber LED link
Link Budget Example (Rtset set so LED launch current = 100 mA peak)
Fiber type
Fiber size
Minimum transmit couple power to fiber (µW)
Minimum LED responsivity (A/W)
Minimum ACS406CS sensitivity (nA)
Minimum input power to ACS406CS amplifier (µW)
Link budget (dB)
Single Fiber LASER link
Link Budget Example (Rtset set so LASER launch current = 25 mA peak)
Fiber type
Fiber size
Minimum transmit couple power to fiber (µW)
Minimum LASER & PIN responsivity (A/W)
Minimum ACS406CS sensitivity (nA)
Minimum input power to ACS406CS amplifier (µW)
Link budget (dB) (single mode fiber attenuation = 0.3 dB/km)
Figure 8. Shows the relationship between data channels
ACS406CS
ACS406CS
TPOS1/TNEG1
RPOS1/RNEG1
TPOS2/TNEG2
RPOS2/RNEG2
TPOS3/TNEG3
RPOS3/RNEG3
TPOS4/RNEG4
RPOS4/RNEG4
TmCLK
RmCLK
TCLK1
RCLK1
TCLK2
RCLK2
TCLK3
RCLK3
TCLK4
RCLK4
TmD1
RmD1
TmD2
RmD2
TmD3
RmD3
TmD4
RmD4
Single Fiber Link
19
Plastic
1000 micron
1000
1500
100
10
Glass (single mode)
9 micron
1000
0.25
1000
4
24
0.01
ACS406CS
RPOS1/RNEG1
RPOS2/RNEG2
RPOS3/RNEG3
TPOS4/RNEG4
RPOS4/RNEG4
TPOS1/TNEG1
TPOS3/TNEG3
TPOS4/TNEG4
RCLK1
RCLK2
RCLK3
RCLK4
RmCLK
TmCLK
TCLK1
TCLK2
TCLK3
TCLK4
RmD1
TmD1
RmD2
TmD2
RmD3
TmD3
RmD4
TmD4
15
Glass
62.5micron
100
0.1
1500
8.24
ACS406CS Issue 1.6 January 1999.
Glass
1500
12.5
6.0
50 micron
50
0.12