7810 Video Receiver Module
The broadband 7810 video receiver module is a versatile,
state-of-the-art solution for a variety of network applications.
Features
■
Wide 40 MHz—1000 MHz bandwidth supports as
many as 110 CATV analog channels or a combination of analog/digital channels (e.g., 80/30), including HDTV broadcast
■
Excellent frequency and distortion characteristics
for high linearity
■
Low noise (4.5 pA/√Hz, typ.), low power dissipation
(1.35 W max.), as well as high RF output
Preliminary Data Sheet
March 2001
Description
The 7810 video receiver is a single-mode fiber pigtailed module featuring a low-noise, impedancematched broadband photodiode and RF amplification.
The device receives optical analog and/or digital signals for a range of video broadcast options, and
delivers the corresponding RF electrical output. The
wide bandwidth supports the delivery of up to 110
CATV analog signals or combination of analog and
digital channels (80/30, for example), including HDTV
broadcast.
The 7810 exhibits excellent distortion performance
with values well above standards over the entire
bandwidth and temperature specifications (40 MHz—
1000 MHz, –40 °C to +85 °C).
Moreover, the advanced impedance-match circuitry
between the photodetector and RF amplification
stages resolves a number of OEM design obstacles
with very low typical noise performance value, not
exceeding 4.5 pA/√Hz.
The 7810 video receiver can be used in both
1310 nm and 1550 applications, being useful at
different points of a given network.
■
Internal impedance-match circuitry (75
■
Robust, small package with single-mode fiber pig-
Ω)
tail and connector options
■
Wide operating temperature range, –40 °C to
+85 °C
Applications
■
Video signal distribution in HFC and FTTx nodes
■
Video overlay in passive optical networks (PON)
Preliminary Data Sheet
7810 Video Receiver Module March 2001
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability
Parameter Symbol Min Max Unit
Operating Temperature Range T
Storage Temperature Range Tstg –40 85
Humidity at 85 °CRH—95%
Shock (1 ms duration; half sine wave:
X, Y, Z axis)
Vibration (Single Sine):
5 MHz—100 MHz, 0.10 Oct/Min.
100 MHz—500 MHz, 0.25 Oct/Min.
Note: For all tables, typical values are performed at 25 °C; min and max values are performance vs. temperature.
.
OP
——100g
—
–40 85
—
—
0.5
3.0
C
°
C
°
g
g
Characteristics
Table 1. Electrical/Optical Characteristics
Parameter Symbol Min Typ Max Unit
Optical Power P
Power Supply
Bias, Pin 1
Bias, Pin 2
Wavelength
Responsivity — —
Dissipation P
* Depends on channel loading. Refer to the
IN
V
CC
V
CC
λ
DISS
7810 Video Receiver Module
—10* 2 4* dBm
—
—
1200 1310/1550 1600 nm
>0.85 at 1310 nm,
—
—1.251.35W
Application Note (TN01-002OPTO.)
15
12
>0.95 at 1550 nm
—
—
—
—
V
V
mA/mW
mA/mW
Table 2. RF Characteristics
Parameter Symbol Min Typ Max Unit
Frequency Response F 40 — 1000 MHz
Gain G 16 17 18 dB
Ripple:
40 MHz—859 MHz
860 MHz—1 Ghz
Output Return Loss RL –13 –11 –10 dB
Noise — 4.0 4.5 5.0
Distortion (absolute value):
Composite Second-Order:
40 MHz—749 MHz
750 mHz—1 GHz
Composite Triple Beat
1. Two laser test at 1310 nm/1550 nm. Each laser has 40% modulation index. Total received optical power is 2 dBm. Distortion products measured at 80 MHz, 450 MHz, 600 MHz, 745 MHz, and 850 MHz.
1
—
CSO
CTB
67
65
82
±0.5
±0.75
70
67
85
±0.6
±0.85
—
—
—
dB
dB
pA/√Hz
dBc
dBc
dBc
2
Agere Systems Inc.
.