ltc5100 Linear Technology Corporation, ltc5100 Datasheet - Page 14

• Manufacturer Part Number: ltc5100
• Description: 3.3v, 3.2gbps Vcsel Driver
• Manufacturer: Linear Technology Corporation

LTC5100
FU CTIO AL DIAGRA S
14
V
DD(HS)
U
SDA
SCL 7
V
V
V
EN
DD
IN
IN
SS
SS
+
–
16
15
6
8
1
2
3
4
Ext temp en
T int adc
SENSOR
TEMP
T ext
U
100
Peaking
ADC
Im nom
Ib nom
Im tc1
Im tc2
Ib tc1
Ib tc2
T nom
Figure 4. Functional Diagram—Constant Current Control Mode
–
+
DAC
W
–
+
COMP
COMP
TEMP
TEMP
Ib_set
+
+
–
–
Im_error
Ib_error
V
SS
(BIAS CURRENT)
(EXPOSED PAD)
Im gain
Ib gain
17
+
–
USER_ADC. Data
USER_ADC. Data
Im adc
Is rng
Im rng
Im dac
Is adc
Is dac
ADC
ADC
ADC
DAC
ADC
DAC
+
–
Im rng
+
–
+
–
Is rng
I
M
V
DD
+
–
V
V
I
I
S
S
TERM
LD
sn5100 5100fs
13
14
12
11
10
5
9
5100 F04
FAULT
MD
SRC
V
MODA
MODB
V
SS
SS