CM2020
HDMI Transmitter Port Protection and Interface Device
Features
•
•
•
•
•
•
0.05pF matching capacitance between the TMDS
intra-pair
Overcurrent output protection
Level shifting circuitry, including
±8kV
ESD protec-
tion on all TMDS lines
Matched 0.5mm trace spacing (TSSOP)
Simplified layout for HDMI connectors
Backdrive protection
Product Description
The CM2020 HDMI Transmitter Port Protection and
Interface Device is specifically designed for next gen-
eration HDMI Host interface protection.
An integrated package provides all ESD, level shift,
overcurrent output protection and backdrive protection
for an HDMI port in a single 38-Pin TSSOP package.
The CM2020 part is specifically designed to comple-
ment the CM2021 protection part in HDMI receivers
(Displays, CE devices, etc.)
The CM2020 also incorporates a silicon overcurrent
protection device for +5V supply voltage output to the
connector.
Applications
•
•
•
•
PC
Consumer Electronics
Set Top Box
Displays and Digital Television
Electrical Schematic
TMDS_VDD
5V_SUPPLY
TMDS_D2+
TMDS_GND
TMDS_D2-
TMDS_D1+
TMDS_GND
TMDS_D1-
TMDS_D0+
TMDS_GND
TMDS_D0-
TMDS_CK+
TMDS_GND
TMDS_CK-
3.3V SUPPLY
TMDS_VDD
3.3V SUPPLY
TMDS_VDD
CE_REMOTE_IN
CE_REMOTE_OUT
DDC_DAT_IN
DDC_DAT_OUT
3.3V SUPPLY
TMDS_VDD
3.3V SUPPLY
TMDS_VDD
DDC_CLK_IN
DDC_CLK_OUT
HOTPLUG_DET_IN
HOTPLUG_DET_OUT
5V_SUPPLY
75mA
OVERCURRENT
SWITCH
5V_OUT
©
2005 California Micro Devices Corp. All rights reserved.
02/07/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
1
CM2020
PACKAGE / PINOUT DIAGRAM
TOP VIEW
5V_SUPPLY
3.3V_SUPPLY
GND
TMDS_D2+
TMDS_GND
NC
TMDS_D1+
TMDS_GND
NC
TMDS_D0+
TMDS_GND
NC
TMDS_CK+
TMDS_GND
NC
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
TMDS_VDD
GND
NC
TMDS_GND
TMDS_D2-
NC
TMDS_GND
TMDS_D1-
NC
TMDS_GND
TMDS_D0-
NC
TMDS_GND
TMDS_CK-
CE_REMOTE_OUT
DDC_CLK_OUT
DDC_DAT_OUT
HOTPLUG_DET_OUT
38-PIN TSSOP PACKAGE
Note: This drawing is not to scale.
PIN DESCRIPTIONS
PINS
37
4
33
7
30
10
27
13
24
16
23
17
22
18
21
19
20
2
1
38
3, 5, 8, 11, 14, 25,
28, 31, 34, 36
6, 9, 12,15, 26, 29, 32, 35
NAME
TMDS_VDD
TMDS_D2+
TMDS_D2-
TMDS_D1+
TMDS_D1-
TMDS_D0+
TMDS_D0-
TMDS_CK+
TMDS_CK-
CE_REMOTE_IN
CE_REMOTE_OUT
DDC_CLK_IN
DDC_CLK_OUT
DDC_DAT_IN
DDC_DAT_OUT
HOTPLUG_DET_IN
HOTPLUG_DET_OUT
3.3V_SUPPLY
5V_SUPPLY
5V_OUT
GND / TMDS_GND
NC
DESCRIPTION
TMDS ESD diodes biased from 5V_SUPPLY through internal diode.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 0.9pF ESD protection.
TMDS 1pF ESD protection.
3.3V_SUPPLY referenced logic level in.
5V_SUPPLY referenced logic level out plus 4pF ESD.
3.3V_SUPPLY referenced logic level in.
5V_SUPPLY referenced logic level out plus 4pF ESD.
3.3V_SUPPLY referenced logic level in.
5V_SUPPLY referenced logic level out plus 4pF ESD.
3.3V_SUPPLY referenced logic level in.
5V_SUPPLY referenced logic level out plus 4pF ESD.
Bias for CE / DDC / HOTPLUG level shifters.
Current source for 5V_OUT.
75mA minimum overcurrent protected 5V output.
GND reference.
No Connect.
©
2005 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
02/07/05
CM2020
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Pins
38
Package
TSSOP-38
Ordering Part
Number
1
CM2020-00TS
Part Marking
CM2020-00TS
Lead-free Finish
Ordering Part
Number
1
CM2020-00TR
Part Marking
CM2020-00TR
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
V
CC5
, V
CC3
ESD Clamp Diode Forward DC Current (Note 1)
DC Voltage at any Channel Input
Storage Temperature Range
Operating Temperature Range
Note 1: Only one diode conducting at a time.
RATING
6.0
8
[GND - 0.5] to [VCC + 0.5]
-65 to +150
-40 to +85
UNITS
V
mA
V
°C
°C
STANDARD (RECOMMENDED) OPERATING CONDITIONS
SYMBOL
5V_SUPPLY
3.3V_SUPPLY
PARAMETER
Operating Supply Voltage
Bias Supply Voltage
1
MIN
TYP
5
3.3
MAX
5.5
5.5
UNITS
V
V
©
2005 California Micro Devices Corp. All rights reserved.
02/07/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
3
CM2020
Specifications (cont’d)
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL
I
CC5
I
CC3
V
DROP
I
SC
I
OFF
I
BACKDRIVE
PARAMETER
Operating Supply Current
Bias Supply Current
5V_OUT Overcurrent Output
Drop
5V_OUT Short Circuit Current
Limit
OFF state leakage current,
level shifting NFET
Current conducted from output
pins to V_SUPPLY rails when
powered down
CONDITIONS
5V_SUPPLY = 5.0V
3.3V_SUPPLY = 3.3V
5V_SUPPLY= 5.0V,
I
OUT
=55mA
5V_SUPPLY= 5.0V,
5V_OUT = GND
3.3V_SUPPLY
=
0V
5V_SUPPLY
<
V
CH_OUT
;
Signal pins: TMDS_[2:0]+/-,
TMDS_CK+/-, CE_REMOTE_OUT,
DDC_DAT_OUT, DDC_CLK_OUT,
HOTPLUG_DET_OUT, 5V_OUT
Only
3.3V_SUPPLY = 2.5V, V
S
= GND,
I
DS
= 3mA
I
F
= 8mA, T
A
= 25°C, Note 2
75
90
MIN
100
TYP
110
1
65
135
0.1
0.1
MAX
130
5
100
175
5
5
UNITS
µA
µA
mV
mA
µA
µA
V
ON
V
F
VOLTAGE drop across level
shifting NFET when ON
Diode Forward Voltage
Top Diode
Bottom Diode
ESD Withstand Voltage (IEC)
ESD Withstand Voltage
(HBM)
Channel Clamp Voltage @
8kV HBM ESD
Positive Transients
Negative Transients
Dynamic Resistance
Positive Transients
Negative Transients
TMDS Channel Leakage Cur-
rent
TMDS Channel Input
Capacitance
C
IN
Matching Capacitance
95
140
mV
0.6
0.6
0.85
0.85
0.95
0.95
V
V
kV
kV
V
ESD
V
ESD
V
CL
Pins 4, 7, 10, 13, 20, 21, 22, 23, 24,
27, 30, 33; Notes 2 and 3
Pins 1, 2, 16, 17, 18, 19, 37, 38;
Notes 2 and 4
T
A
= 25°C, Notes 2 and 4
±
8
±
2
9.0
-9.0
I = 1A, T
A
= 25°C, Note 5
3.0
1.5
V
V
Ω
Ω
1
1.2
µA
pF
R
DYN
I
LEAK
C
IN,
TMDS
T
A
= 25°C, Note 2
5V_SUPPLY= 5.0V,
Measured at 1MHz,
V
BIAS
=2.5V, Note 2
5V_SUPPLY= 5.0V,
Measured at 1MHz,
V
BIAS
=2.5V, Note 2, 6
5V_SUPPLY= 0V,
Measured at 1MHz,
V
BIAS
=2.5V, Note 2
0.01
0.9
∆
C
IN,
TMDS
C
MUTUAL
0.05
pF
Mutual Capacitance between
signal pin and NC pin
0.07
pF
©
2005 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
02/07/05
CM2020
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
C
IN,
DDC
Level Shifting Input Capaci-
tance, Capacitance to GND
5V_SUPPLY= 0V,
Measured at 100KHz,
V
BIAS
=2.5V, Note 2
5V_SUPPLY= 0V,
Measured at 100KHz,
V
BIAS
=2.5V, Note 2
5V_SUPPLY= 0V,
Measured at 100KHz,
V
BIAS
=2.5V, Note 2
4
6
pF
C
IN,
CEC
Level Shifting Input Capaci-
tance, Capacitance to GND
4
6
pF
C
IN,
HP
Level Shifting Input Capaci-
tance, Capacitance to GND
4
6
pF
Note 1: Operating Characteristics are over Standard Operating Conditions unless otherwise specified.
Note 2: This parameter is guaranteed by design and verified by device characterization.
Note 3: Standard IEC 61000-4-2, C
DISCHARGE
=150pF, R
DISCHARGE
=330
Ω
.
Note 4: Human Body Model per MIL-STD-883, Method 3015, C
DISCHARGE
=100pF, R
DISCHARGE
=1.5k
Ω
Note 5: These measurements performed with no external capacitor on TMDS_VDD.
Note 6: Intra-pair matching, each TMDS pair (i.e. D+, D-)
©
2005 California Micro Devices Corp. All rights reserved.
02/07/05
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
●
Tel: 408.263.3214
●
Fax: 408.263.7846
●
www.calmicro.com
5
电子竞赛
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
