MAX3969E/D Maxim Integrated, MAX3969E/D Datasheet - Page 4

• Manufacturer Part Number: MAX3969E/D
• Description: Limiting Amplifiers
• Manufacturer: Maxim Integrated

Specifications of MAX3969E/D

• Operating Supply Voltage: 3 V, 5 V
• Supply Current: 22 mA
• Operating Temperature Range: + 85 C
• Number Of Channels: 1
• Power Dissipation: 1099 mW

200Mbps SFP Limiting Amplifier
(V
4
OUT
LOS
SD
IN
CC
6 , 7, 8
_______________________________________________________________________________________
POWER-DETECT TIMING WITH SQUELCH
(INPUT = 12mV
= +3.3V, PECL outputs terminated with 50Ω to V
PIN
R2 = 15kΩ, 155Mbps, 2
10
11
12
13
14
15
16
1
2
3
4
5
9
P-P
10μs/div
FILTER
NAME
OUT+
V
OUT-
RSSI
GND
CZN
CZP
LOS
LOS
IN+
INV
, C
IN-
CCO
SD
FILTER
23
- 1 PRBS)
= 0.01μF,
Inverting Input of Internal Op Amp that Sets Power-Detect Threshold Voltage (Figure 1). Connect a
resistor from V
voltage.
Filter Output of Logarithmic Full-Wave Detectors (FWDs). The FWD outputs are summed together at
FILTER to generate the RSSI output. Connect a capacitor from FILTER to V
Received-Signal-Strength Indicator Output. The voltage at RSSI indicates the input-signal power. The
RSSI output is reduced approximately 120mV when LOS is asserted.
Inverting Data Input
Noninverting Data Input
Ground
Autozero Capacitor Input. Connect a capacitor between CZP and CZN.
Autozero Capacitor Input. Connect a capacitor between CZP and CZN.
Output-Buffer Supply Voltage. Connect to the same potential as V
Noninverting PECL Data Output. Terminate with 50Ω to (V
Inverting PECL Data Output. Terminate with 50Ω to (V
Signal Detect, PECL Output. The SD output is high when input power is above the power-detect
threshold, and low when input power is below the power-detect threshold. This pin is PECL-
compatible and should be terminated with 50Ω to (V
Loss-of-Signal Output, TTL Open Collector (with ESD Protection). The LOS output is high when input
power is below the power-detect threshold, and low when input power is above the power-detect
threshold.
Inverted Loss-of-Signal Output, TTL Open Collector (with ESD Protection). The LOS output is low
when input power is below the power-detect threshold, and high when input power is above the
power-detect threshold.
MAX3969 toc10
TH
100
90
80
70
60
50
40
30
20
10
0
to INV (R2), and from INV to ground (R1 = 100kΩ), to program the desired threshold
Typical Operating Characteristics (continued)
1
vs. DIFFERENTIAL INPUT VOLTAGE
DIFFERENTIAL INPUT VOLTAGE (mV
CC
PULSE-WIDTH DISTORTION
- 2V, R1 = 100kΩ, T
10
INPUT DATA THROUGH
117MHz FILTER
UNFILTERED
INPUT DATA
100
100Mbps
1-0 PATTERN
1000
FUNCTION
A
P-P
= +25°C, unless otherwise noted.)
)
10,000
CC
CC
- 2V) or equivalent.
- 2V).
CC
- 2V).
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
CC
.
DATA OUTPUT TRANSITION TIME
-15
AMBIENT TEMPERATURE (°C)
CC
Pin Description
vs. TEMPERATURE
for proper operation.
10
35
60
85