TI TPD12S521

www.ti.com
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
SLVS639 – OCTOBER 2007
FEATURES
1
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•
•
•
•
•
•
•
Single-Chip ESD Solution for High-Definition
Multimedia Interface (HDMI) Driver
0.9 pF Capacitance for High-Speed Transition
Minimized Differential Signaling (TMDS) Lines
0.05-pF Matching Capacitance Between the
Differential Signal Pair
Integrated Level Shifting for the Control Lines
±8-kV Contact ESD Protection on
External Lines
38-Pin Thin Shrink Small-Outline Package
(TSSOP) Provides Seamless Layout Option
With HDMI Connector
Backdrive Protection
Lead-Free Package
On-Chip Current Regulator With 55-mA
Current Output
DBT PACKAGE
(TOP VIEW)
5V_SUPPLY
LV_SUPPLY
GND
TMDS_D2+
TMDS_GND
TMDS_D2–
TMDS_D1+
TMDS_GND
TMDS_D1–
TMDS_D0+
TMDS_GND
TMDS_D0–
TMDS_CK+
TMDS_GND
TMDS_CK–
CE_REMOTE_IN
DDC_CLK_IN
DDC_DAT_IN
HOTPLUG_DET_IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
5V_OUT
ESD_BYP
GND
TMDS_D2+
TMDS_GND
TMDS_D2–
TMDS_D1+
TMDS_GND
TMDS_D1–
TMDS_D0+
TMDS_GND
TMDS_D0–
TMDS_CK+
TMDS_GND
TMDS_CK–
CE_REMOTE_OUT
DDC_CLK_OUT
DDC_DAT_OUT
HOTPLUG_DET_OUT
APPLICATIONS
•
•
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•
PCs
Consumer Electronics
Set-Top Boxes
DVDRW Players
DESCRIPTION/ORDERING INFORMATION
The TPD12S521 is a single-chip ESD solution for the high-definition multimedia interface (HDMI) transmitter port.
In many cases, the core ICs, such as the scalar chipset, may not have robust ESD cells to sustain system-level
ESD strikes. In these cases, the TPD12S521 provides the desired system level ESD protection, such as the the
IEC61000-4-2 (Level 4) ESD, by absorbing the energy associated with the ESD strike.
While providing the ESD protection, the TPD12S521 adds little or no additional glitch in the high-speed
differential signals (see Figure 3 and Figure 4). The high-speed transition minimized differential signaling (TMDS)
lines add only 0.9 pF capacitance to the lines. In addition, the monolithic integrated circuit technology ensures
that there is excellent matching between the two-signal pair of the differential line. This is a direct advantage over
discrete ESD clamp solutions where variations between two different ESD clamps may significantly degrade the
differential signal quality.
The low-speed control lines offer voltage-level shifting to eliminate the need for an external voltage level-shifter
IC. The control line ESD clamps add 3.5 pF capacitance to the control lines. The 38-pin DBT package offers
seamless layout routing option to eliminate the routing glitch for the differential signal pair.
The TPD12S521 provides an on-chip regulator with current output ratings of 55 mA at pin 38. Maximum
overcurrent protection output drop at 55 mA on 5V_OUT is 100 mV. This current enables the HDMI receiver
detection even when the receiver device is powered-off. DBT package pitch (0.5 mm) matches with HDMI
connector pitch. In addition, pin mapping follows the same order as the HDMI connector pin mapping. This HDMI
receiver port protection and interface device is specifically designed for next-generation HDMI transmitter
protection.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.
Copyright © 2007, Texas Instruments Incorporated
PRODUCT PREVIEW
•
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
www.ti.com
SLVS639 – OCTOBER 2007
ORDERING INFORMATION
STANDARD FINISH
PACKAGE (1) (2)
TA
–40°C to 85°C
(1)
(2)
(3)
TSSOP-38
ORDERABLE
PART NUMBER (3)
TPD12S521DBTR
LEAD-FREE FINISH
TOP-SIDE
MARKING
PREVIEW
ORDERABLE
PART NUMBER (3)
TPD12S521DBTR
TOP-SIDE
MARKING
PREVIEW
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
Parts are shipped in tape-and-reel form, unless otherwise specified.
ELECTRICAL SCHEMATIC
ESD_BYP
5V_SUPPLY
PRODUCT PREVIEW
TMDS_D2+
TMDS_D1+
TMDS_D0+
TMDS_CK+
TMDS_GND
TMDS_GND
TMDS_GND
TMDS_GND
TMDS_D2–
TMDS_D1–
TMDS_D0–
TMDS_CK–
LV Supply
LV Supply
CE_REMOTE_IN
CE_REMOTE_OUT
LV Supply
LV Supply
DDC_CLK_IN
HOTPLUG_DET_OUT
DDC_CLK_OUT HOTPLUG_DET_IN
5V_SUPPLY
2
DDC_DAT_OUT
DDC_DAT_IN
55-mA
Overcurrent
Switch
Submit Documentation Feedback
5V_OUT
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
www.ti.com
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
SLVS639 – OCTOBER 2007
38
1
D2+
GND
D2–
D1+
GND
D1–
D0+
GND
D0–
CLK+
GND
CLK–
CE_R
NC
D_CK
D_DT
GND
5OUT
HTDT
TPD12S521
HDMI Core Chip
19
HDMI
Connector
High-speed lines
Board Traces
GND
VIA Connected to 5V Plane
Control lines
VIA Connected to LV Plane
5 V out
VIA Connected to GND Plane
External bypass capacitors and resistor components not included
PRODUCT PREVIEW
A.
20
Figure 1. Board Layout for HDMI Transmitter Using TPD12S521DBTR
PIN DESCRIPTION
(1)
(2)
PIN NO.
NAME
4, 35
TMDS_D2+
TMDS 0.9-pF ESD protection (1)
DESCRIPTION
6, 33
TMDS_D2–
TMDS 0.9-pF ESD protection (1)
7, 32
TMDS_D1+
TMDS 0.9-pF ESD protection (1)
9, 30
TMDS_D1–
TMDS 0.9-pF ESD protection (2)
10, 29
TMDS_D0+
TMDS 0.9-pF ESD protection (2)
12, 27
TMDS_D0–
TMDS 0.9-pF ESD protection (2)
13, 26
TMDS_CK+
TMDS 0.9-pF ESD protection (2)
15, 24
TMDS_CK–
TMDS 0.9-pF ESD protection (2)
16
CE_REMOTE_IN
23
CE_REMOTE_OUT
LV_SUPPLY referenced logic level in
17
DDC_CLK_IN
22
DDC_CLK_OUT
18
DDC_DAT_IN
21
DDC_DAT_OUT
19
HOTPLUG_DET_IN
20
HOTPLUG_DET_OUT
2
LV_SUPPLY
Bias for CE/DDC/HOTPLUG level shifters
1
5V_SUPPLY
Current source for 5V_OUT
38
5V_OUT
55-mA minimum overcurrent protected 5-V output. This output must be
bypassed with a 0.1-μF ceramic capacitor.
37
ESD_BYP
ESD bypass. This pin must be connected to a 0.1-μF ceramic capacitor.
3, 5, 8, 11, 14,
25, 28, 31, 34, 36
GND/TMDS_GND
5V_SUPPLY referenced logic level out, plus 3.5-pF ESD
LV_SUPPLY referenced logic level in
5V_SUPPLY referenced logic level out, plus 3.5-pF ESD
LV_SUPPLY referenced logic level in
5V_SUPPLY referenced logic level out, plus 3.5-pF ESD
LV_SUPPLY referenced logic level in
5V_SUPPLY referenced logic level out, plus 3.5-pF ESD
GND reference
These two pins must be connected together inline on the PCB.
These two pins must be connected together inline on the PCB.
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Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
3
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
www.ti.com
SLVS639 – OCTOBER 2007
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
MIN
MAX
VCC5
VCC3
6
DC voltage at any channel input
Tstg
Storage temperature range
UNIT
V
GND – 0.5
VCC + 0.5
V
–65
150
°C
NOM
MAX
UNIT
5
5.5
3.3
5.5
V
85
°C
Recommended Operating Conditions
MIN
Operating supply voltage
5V_SUPPLY
Bias supply voltage
LV_SUPPLY
Operating temperature range
1
–40
V
PRODUCT PREVIEW
4
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
www.ti.com
SLVS639 – OCTOBER 2007
Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
TEST CONDITIONS
Operating supply current
5V_SUPPLY = 5 V
ICC3
Bias supply current
LV_SUPPLY = 3.3 V
VDROP
5V_OUT overcurrent output drop
5V_SUPPLY = 5 V, IOUT = 55 mA
ISC
5V_OUT short-circuit current limit
5V_SUPPLY= 5 V, 5V_OUT = GND
IOFF
OFF-state leakage current,
level-shifting NFET
LV_SUPPLY = 0 V
MIN
TYP MAX UNIT
110
130
μA
1
5
μA
65
100
mV
135
175
mA
0.1
5
μA
0.1
5
μA
75
95
140
mV
Top diode
0.6
0.85
0.95
Bottom diode
0.6
0.85
0.95
90
TMDS_D[2:0]+/–,
TMDS_CK+/–,
CE_REMOTE_OUT,
DDC_DAT_OUT,
DDC_CLK_OUT,
HOTPLUG_DET_OUT,
5V_OUT
IBACKDRIVE
Current conducted from output pins to
V_SUPPLY rails when powered down
VON
Voltage drop across level-shifting NFET
LV_SUPPLY = 2.5 V, VS = GND, IDS = 3 mA
when ON
VF
Diode forward voltage
VESD
ESD withstand voltage
VCL
Channel clamp voltage
at 8-kV HBM ESD
TA = 25°C (1) (3)
RDYN
Dynamic resistance
I = 1 A, TA = 25°C (4)
ILEAK
TMDS channel leakage current
TA = 25°C (1)
0.01
1
μA
CIN,
TMDS
TMDS channel input capacitance
5V_SUPPLY= 5 V, Measured at 1 MHz,
VBIAS = 2.5 V (1)
0.9
1.1
pF
ΔCIN,
TMDS
TMDS channel input capacitance
matching
5V_SUPPLY= 5 V, Measured at 1 MHz,
VBIAS = 2.5 V (1) (5)
0.05
pF
CMUTUAL
Mutual capacitance between signal pin
and adjacent signal pin
5V_SUPPLY= 0 V, Measured at 1 MHz,
VBIAS = 2.5 V (1)
0.07
pF
CIN
Level-shifting input capacitance,
capacitance to GND
5V_SUPPLY= 0 V, Measured at 100 KHz,
VBIAS = 2.5 V (1)
(1)
(2)
(3)
(4)
(5)
5V_SUPPLY < VCH_OUT
IF = 8 mA,
TA = 25°C (1)
Pins 4, 7, 10, 13, 20–24, 27, 30, 33 (1) (2)
IEC
±8
Pins 1, 2, 16–19, 37, 38 (1) (3)
HBM
±2
kV
Positive transients
9
Negative transients
–9
Positive transients
V
3
Negative transients
V
PRODUCT PREVIEW
PARAMETER
ICC5
Ω
1.5
DDC
3.5
4
CEC
3.5
4
HP
3.5
4
pF
This parameter is specified by design and verified by device characterization.
Standard IEC 61000-4-2, CDISCHARGE = 150 pF, RDISCHARGE = 330 Ω
Human-Body Model (HBM) per MIL-STD-883, Method 3015, CDISCHARGE = 100 pF, RDISCHARGE = 1.5 kΩ
These measurements performed with no external capacitor on ESD_BYP.
Intrapair matching, each TMDS pair (i.e., D+, D–)
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
5
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
www.ti.com
SLVS639 – OCTOBER 2007
TYPICAL PERFORMANCE
Typical Filter Performance (TA = 25°C, DC Bias = 0 V, 50-Ω Environment)
–1
–2
Insertion Loss (dB)
–3
–4
–5
–6
–7
PRODUCT PREVIEW
–8
–9
–10
3
10
100
1000
6000
Frequency (MHz)
Figure 2. Insertion Loss vs Frequency (TMDS_D1– to GND)
Figure 3. Eye Diagram With TPD12S521
6
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
www.ti.com
TPD12S521
SINGLE-CHIP HDMI TRANSMITTER PORT PROTECTION AND INTERFACE DEVICE
SLVS639 – OCTOBER 2007
PRODUCT PREVIEW
TYPICAL PERFORMANCE (continued)
Figure 4. Eye Diagram Without TPD12S521
Figure 5. Test Board to Measure Eye Diagram for the TPD12S521 (Refer to Eye Diagram Plot)
Submit Documentation Feedback
Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): TPD12S521
7
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