+ +
DATASHEET
TW3811
FN8284
Rev.1.00
Security Link Over Coax (SLOC) Receiver
Nov 29, 2012
SLOC (Security Link Over Coax) is a transmission protocol for
Features
simultaneously transmitting analog CVBS video and digital IP
Simultaneous transmission of IP video data and analog
video over a single coaxial cable.
CVBS video over up to 500m of RG59 coaxial cable
The TW3811 is the receiving end of a SLOC link, converting the
Analog CVBS video preview support
single SLOC signal on the coaxial cable back to separate
Proprietary adaptive analog equalizer for extending the
Ethernet digital video data and analog CVBS video. It can be
reach of CVBS video
embedded into a DVR to enable one or more SLOC inputs or
configured as a stand-alone SLOC-to-IP+CVBS converter.
Proprietary SLOC-based IP camera detection
Creates a full-duplex 100BASE-T digital link
The TW3811 includes an AFE, digital modem, and two
Ethernet MII/RMII interfaces. The device accepts a SLOC
36Mbps downlink speed from TW3801 to TW3811
output signal from a SLOC transmitter and decodes it into an
4Mbps uplink for SLOC compliance
analog CVBS signal and an Ethernet MII signal.
Ethernet MAC MII/RMII interface for interfacing to DVR/NVR
network processor SoC
Applications
Optional Ethernet PHY MII/RMII interface for interfacing to
Single-Channel SLOC receiver modem
external Ethernet PHY chip
Multi-Channel SLOC receiver modem
2
I C 2-wire control interface
Embedded DVR
Integrated PLL with 25MHz crystal interface
1.8V, 3.3V supplies
100-TQFP (12x12mm) Package
Application Block Diagram
IP Camera SLOC Adapter Module
One-Channel SLOC Receiver
MCU MCU
SPOT
(optional) (optional)
Monitor
Analog Analog
CVBS CVBS
Up to 500m of
EL8101
RG59 cable
DVR
TW3801 TW3811
Ethernet
Network
100BASE-T 100BASE-T Ethernet
Switch
PHY PHY
NVR
Simplified Application Schematic
3.3V 3.3V 1.8V
V V V
DD_A DD_IO DD_D
SLOC MII or
COAX_IN
MII / RMII
Ethernet
Coax I/O 22F RMII RJ45
Interface
I/O
PHY
0.1F
COAX_OUT
24k
TW3811
470F LOAD_DRV
10F
10k
470F
75 75
75
CVBS_OUT
CVBS
Output
3.3V
150nH
BAT54
1M
4.7k
25MHz 10F
1.5k
2
I C
22pF 22pF
Microcontroller
FN8284 Rev.1.00 Page 1 of 20
Nov 29, 2012
XTAL_IN
XTAL_OUT
SCL
SDA
+TEST_IO
76 VSS_A 50
77 NC VSS_IO 49
78 COAX_IN VDD_IO 48
TEST_IN1
79 VSS_DAC 47
80 VREF TEST_IN0 46
81 VDD_DAC RX_D3 45
B
RX_D2
82 VDD_PLL B 44
83 VSS_PLL VSS_D 43
84 XTAL_IN VDD_D 42
85 XTAL_OUT RX_D1 41
B
RX_D0
86 VDD_IO B 40
87 VSS_IO RX_DV 39
B
88 MODE_S0 RX_ER 38
B
TX_CLK 37
89 VDD_D B
90 VSS_D RX_CLKB 36
91 MODE_S1 VSS_D 35
92 MODE_S2 VDD_D 34
TX_D3
93 MODE_S3 B 33
94 SDA TX_D2 32
B
95 VDD_D TX_D1 31
B
TX_D0
96 VSS_D B 30
97 SCLK TX_ENB 29
98 HWRST VSS_IO 28
VDD_IO 27
99 VDD_IO
TX_ER
100 VSS_IO B 26
TW3811
Ordering Information
PART PART TEMP RANGE PACKAGE PKG.
NUMBER MARKING (C) (Pb-free) DWG. #
TW3811-TC1-CR (Notes 1, 2, 3) TW3811 TC1-CR -40 to +85 100 Ld TQFP Q100.12X12A
TW3811-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
TW3811
(100 LD TQFP)
TOP VIEW
COM_REF
1 VDD_IO 75
2 VSS_IO VDD_A 74
3 MDC VSS_TVDR 73
4 MDIO NC 72
5 RX_DV VDD_TVDR 71
A
6 RX_ER VSS_DRV 70
A
7 RX_D0 NC 69
A
8 CVBS_OUT
VDD_D 68
9 VSS_D COAX_OUT 67
10 RX_D1 LOAD_DRV 66
A
11 RX_D2 VDD_DRV 65
A
12 RX_D3A VDD_ADC 64
TW3811
13 NC REFP_ADC 63
14 TX_EN REFN_ADC 62
A 100-pin TQFP (12x12)
15 VDD_D COM_ADC 61
16 VSS_D VSS_ADC 60
17 TX_ER VSS_D 59
A
18 TX_D0 VDD_D 58
A
19 TX_D1 57
A A1
20 TX_D2 A0 56
A
21 TX_D3 LED_2 55
A
22 RX_CLK LED_1 54
A
VDD_IO
23 LED_0 53
24 VSS_IO VSS_IO 52
25 TX_CLK VDD_IO 51
A
FN8284 Rev.1.00 Page 2 of 20
Nov 29, 2012