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Renesas Electronics Components Datasheet

TW3801 Datasheet

SLOC Transmitter

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TW3801
Security Link Over Coax (SLOC) Transmitter
SLOC™ (Security Link Over Coax) is a transmission protocol for
simultaneously transmitting analog CVBS video and digital IP
video over a single coaxial cable.
The TW3801 is the transmitting (“camera”) end of a SLOC link,
combining Ethernet digital video data and analog CVBS video
into a single SLOC signal that can be transmitted over 500m of
coaxial cable. It can be embedded into a camera or configured
as a stand-alone IP+CVBS-to-SLOC converter.
The TW3801 includes an AFE, digital modem, and two
Ethernet MII/RMII interfaces. The device accepts an analog
CVBS signal and an Ethernet (R)MII signal and encodes it into a
SLOC signal.
Applications
• Single-channel SLOC transmitter modem
• Embedded SLOC camera modem
DATASHEET
FN8283
Rev.1.00
November 29, 2012
Features
• Simultaneous transmission of IP video data and analog
CVBS video over up to 500m of RG59 coaxial cable
• Analog CVBS video preview support
• Proprietary adaptive analog equalizer for extending the
reach of CVBS video
• Proprietary SLOC-based IP DVR detection
• Creates a full-duplex 100BASE-T digital link
• 36Mbps downlink speed from TW3801 to TW3811
• 4Mbps uplink for SLOC compliance
• Ethernet MAC MII/RMII interface for interfacing to Camera
ISPs
• Ethernet PHY MII/RMII interface for interfacing to Ethernet
PHY chip
• I2C 2-wire control interface
• Integrated PLL with 25MHz crystal interface
• 1.8V, 3.3V supplies
• 100-TQFP (12mmx12mm) Package
Application Block Diagram
IP Camera
Analog
CVBS
Ethernet
SLOC Adapter Module
MCU
(optional)
100BASE-T
PHY
TW3801
Up to 500m of
RG59 cable
One-Channel SLOC Receiver
MCU
(optional)
TW3811
EL8101
100BASE-T
PHY
Analog
CVBS
Ethernet
SPOT
Monitor
DVR
Network
Switch
NVR
Simplified Application Schematic
Ethernet
I/O
RJ45
IP
Camera
CVBS
Input
1.8V 3.3V 3.3V
MII or
RMII
PHY
MII / RMII
Interface
VDD_D VDD_IO VDD_A
COAX_IN
10µF
CVBS_IN
COAX_OUT
TW3801
LOAD_DRV
75
I2C
Microcontroller
1M
25MHz
22pF
22pF
22µF
0.1µF
470µF
75 75
150nH
SLOC
Coax I/O
FN8283 Rev.1.00
November 29, 2012
Page 1 of 19


Renesas Electronics Components Datasheet

TW3801 Datasheet

SLOC Transmitter

No Preview Available !

TW3801
Ordering Information
PART
NUMBER
PART
MARKING
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
TW3801-TC1-CR (Notes 1, 2, 3)
TW3801 TC1-CR
-40 to +85
100 Ld TQFP
Q100.12X12A
TW3801-TC1-CR-EVAL
Evaluation Board
NOTES:
1. Add “T” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For more information on MSL please see tech brief TB363.
Pin Configuration
TW3801
(100 LD TQFP)
TOP VIEW
1 VDD_IO
2 VSS_IO
3 MDC
4 MDIO
5 RX_DVA
6 RX_ERA
7 RX_D0A
8 VDD_D
9 VSS_D
10 RX_D1A
11 RX_D2A
12 RX_D3A
13 NC
14 TX_ENA
15 VDD_D
16 VSS_D
17 TX_ERA
18 TX_D0A
19 TX_D1A
20 TX_D2A
21 TX_D3A
22 RX_CLKA
23 VDD_IO
24 VSS_IO
25 TX_CLKA
TW3801
100-pin TQFP (12x12)
COM_REF 75
VDD_A 74
VSS_TVDR 73
NC 72
VDD_TVDR 71
VSS_DRV 70
NC 69
NC 68
COAX_OUT 67
LOAD_DRV 66
VDD_DRV 65
VDD_ADC 64
REFP_ADC 63
REFN_ADC 62
COM_ADC 61
VSS_ADC 60
VSS_D 59
VDD_D 58
A1 57
A0 56
LED_2 55
LED_1 54
LED_0 53
VSS_IO 52
VDD_IO 51
FN8283 Rev.1.00
November 29, 2012
Page 2 of 19



Part Number TW3801
Description SLOC Transmitter
Maker Renesas
Total Page 3 Pages
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TW3801 Datasheet PDF





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