Data Sheet

PTN3361B
HDMI/DVI level shifter with dongle detect support and active
DDC buffer
Rev. 02 — 7 October 2009
Product data sheet
1. General description
The PTN3361B is a high-speed level shifter device which converts four lanes of low-swing
AC-coupled differential input signals to DVI v1.0 and HDMI v1.3a compliant open-drain
current-steering differential output signals, up to 1.65 Gbit/s per lane. Each of these lanes
provides a level-shifting differential buffer to translate from low-swing AC-coupled
differential signaling on the source side, to TMDS-type DC-coupled differential
current-mode signaling terminated into 50 Ω to 3.3 V on the sink side. Additionally, the
PTN3361B provides a single-ended active buffer for voltage translation of the HPD signal
from 5 V on the sink side to 3.3 V on the source side and provides a channel with active
buffering and level shifting of the DDC channel (consisting of a clock and a data line)
between 3.3 V source-side and 5 V sink-side. The DDC channel is implemented using
active I2C-bus buffer technology providing capacitive isolation, redriving and level shifting
as well as disablement (isolation between source and sink) of the clock and data lines.
The low-swing AC-coupled differential input signals to the PTN3361B typically come from
a display source with multi-mode I/O, which supports multiple display standards, e.g.,
DisplayPort, HDMI and DVI. While the input differential signals are configured to carry DVI
or HDMI coded data, they do not comply with the electrical requirements of the DVI v1.0 or
HDMI v1.3a specification. By using PTN3361B, chip set vendors are able to implement
such reconfigurable I/Os on multi-mode display source devices, allowing the support of
multiple display standards while keeping the number of chip set I/O pins low. See
Figure 1.
The PTN3361B main high-speed differential lanes feature low-swing self-biasing
differential inputs which are compliant to the electrical specifications of DisplayPort
Standard v1.1 and/or PCI Express Standard v1.1, and open-drain current-steering
differential outputs compliant to DVI v1.0 and HDMI v1.3a electrical specifications. The
I2C-bus channel actively buffers as well as level-translates the DDC signals for optimal
capacitive isolation. Its I2C-bus control block also provides for optional software HDMI
dongle detect by issuing a predetermined code sequence upon a read command to an
I2C-bus specified address. The PTN3361B also supports power-saving modes in order to
minimize current consumption when no display is active or connected.
The PTN3361B is a fully featured HDMI as well as DVI level shifter. It is functionally
comparable to PTN3360B but provides additional features supporting HDMI dongle
detection and active DDC buffering. For HDMI dongles, support of HDMI dongle detection
via the DDC channel is mandatory, hence HDMI dongle applications should enable this
feature for correct operation in accordance with DisplayPort interoperability guidelines.
PTN3361B is powered from a single 3.3 V power supply consuming a small amount of
power (90 mW typ.) and is offered in a 48-terminal HVQFN48 package.
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
MULTI-MODE DISPLAY SOURCE
OE_N
PTN3361B
reconfigurable I/Os
PCIe PHY ELECTRICAL
TMDS
coded
data
PCIe
output buffer
TX
FF
OUT_D4+
OUT_D4−
AC-coupled
differential pair
TMDS data
IN_D4+
DATA LANE
IN_D4−
TX
TMDS
coded
data
PCIe
output buffer
TX
FF
AC-coupled
differential pair
TMDS data
OUT_D3+
OUT_D3−
IN_D3+
DATA LANE
IN_D3−
TX
PCIe
output buffer
TX
FF
AC-coupled
differential pair
TMDS data
DATA LANE
OUT_D2+
OUT_D2−
IN_D2+
DVI/HDMI CONNECTOR
TMDS
coded
data
IN_D2−
TX
TMDS
clock
pattern
PCIe
output buffer
TX
FF
AC-coupled
differential pair
clock
CLOCK LANE
OUT_D1+
OUT_D1−
IN_D1+
IN_D1−
TX
0 V to 3.3 V
3.3 V
HPD_SOURCE
HPD_SINK
0 V to 5 V
DDC_EN
(0 V to 3.3 V)
3.3 V
5V
SCL_SOURCE
SCL_SINK
3.3 V
5V
DDC I/O
(I2C-bus)
CONFIGURATION
SDA_SOURCE
SDA_SINK
002aae053
Remark: TMDS clock and data lanes can be assigned arbitrarily and interchangeably to D[4:1].
Fig 1.
Typical application system diagram
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
2 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
2. Features
2.1 High-speed TMDS level shifting
n Converts four lanes of low-swing AC-coupled differential input signals to DVI v1.0 and
HDMI v1.3a compliant open-drain current-steering differential output signals
n Pin-programmable pre-emphasis feature
n TMDS level shifting operation up to 1.65 Gbit/s per lane (165 MHz character clock)
n TMDS level shifting operation up to 2.25 Gbit/s per lane (225 MHz character clock)
using pre-emphasis feature
n Integrated 50 Ω termination resistors for self-biasing differential inputs
n Back-current safe outputs to disallow current when device power is off and monitor is
on
n Disable feature to turn off TMDS inputs and outputs and to enter low-power state
2.2 DDC level shifting
n
n
n
n
Integrated active DDC buffering and level shifting (3.3 V source to 5 V sink side)
Rise time accelerator on sink-side DDC ports
0 Hz to 400 kHz I2C-bus clock frequency
Back-power safe sink-side terminals to disallow backdrive current when power is off or
when DDC is not enabled
2.3 HDMI dongle detect support
n Incorporates I2C slave ROM
n Responds to DDC read to address 81h with predetermined byte sequence
n Feature enabled by pin DDET (must be enabled for correct operation in accordance
with DisplayPort interoperability guideline
2.4 HPD level shifting
n HPD non-inverting level shift from 0 V on the sink side to 0 V on the source side, or
from 5 V on the sink side to 3.3 V on the source side
n Integrated 200 kΩ pull-down resistor on HPD sink input guarantees ‘input LOW’ when
no display is plugged in
n Back-power safe design on HPD_SINK to disallow backdrive current when power is off
2.5 General
n
n
n
n
n
n
Power supply 3.3 V ± 10 %
ESD resilience to 7 kV HBM, 1 kV CDM
Support for optional HDMI dongle detection via DDC/I2C-bus channel
Power-saving modes (using output enable)
Back-current-safe design on all sink-side main link, DDC and HPD terminals
Transparent operation: no re-timing or software configuration required
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
3 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
3. Applications
n DisplayPort to HDMI adapters (must enable DDET)
n DisplayPort to DVI adapters required to drive long cables
4. Ordering information
Table 1.
Ordering information
Type number
PTN3361BBS
Package
Name
Description
Version
HVQFN48
plastic thermal enhanced very thin quad flat package; no leads; 48 terminals; SOT619-1
body 7 × 7 × 0.85 mm
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
4 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
5. Functional diagram
OE_N
PTN3361B
input bias
enable
50 Ω
OUT_D4+
OUT_D4−
50 Ω
IN_D4+
IN_D4−
enable
input bias
enable
50 Ω
OUT_D3+
OUT_D3−
50 Ω
IN_D3+
IN_D3−
enable
input bias
enable
50 Ω
OUT_D2+
OUT_D2−
50 Ω
IN_D2+
IN_D2−
enable
input bias
enable
50 Ω
OUT_D1+
OUT_D1−
50 Ω
IN_D1+
IN_D1−
enable
HPD level shifter
HPD_SOURCE
(0 V to 3.3 V)
200 kΩ
HPD_SINK
(0 V to 5 V)
DDC_EN (0 V to 3.3 V)
SCL_SOURCE
SDA_SOURCE
I2C-BUS
SLAVE
ROM
DDC BUFFER
AND
LEVEL SHIFTER
SCL_SINK
SDA_SINK
DDET
002aae054
Fig 2.
Functional diagram of PTN3361B
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
5 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
6. Pinning information
37 GND
38 IN_D1−
40 VDD
39 IN_D1+
41 IN_D2−
42 IN_D2+
43 GND
44 IN_D3−
46 VDD
45 IN_D3+
terminal 1
index area
47 IN_D4−
48 IN_D4+
6.1 Pinning
GND
1
36 GND
VDD
2
35 n.c.
PES0
3
34 n.c.
DDET
4
33 VDD
GND
5
32 DDC_EN
REXT
6
HPD_SOURCE
7
SDA_SOURCE
8
29 SDA_SINK
SCL_SOURCE
9
28 SCL_SINK
31 GND
PTN3361BBS
30 HPD_SINK
PES1 10
27 GND
VDD 11
26 VDD
GND 24
OUT_D1− 23
OUT_D1+ 22
VDD 21
OUT_D2− 20
OUT_D2+ 19
GND 18
OUT_D3− 17
OUT_D3+ 16
VDD 15
OUT_D4− 14
25 OE_N
OUT_D4+ 13
GND 12
002aae055
Transparent top view
HVQFN48 package supply ground is connected to both GND pins and exposed center pad. GND
pins must be connected to supply ground for proper device operation. For enhanced thermal,
electrical, and board level performance, the exposed pad needs to be soldered to the board using
a corresponding thermal pad on the board and for proper heat conduction through the board,
thermal vias need to be incorporated in the PCB in the thermal pad region.
Fig 3.
Pin configuration for HVQFN48
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
6 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
6.2 Pin description
Table 2.
Pin description
Symbol
Pin
Type
Description
OE_N, IN_Dx and OUT_Dx signals
OE_N
25
3.3 V low-voltage
CMOS single-ended
input
Output Enable and power saving function for
high-speed differential level shifter path.
When OE_N = HIGH:
IN_Dx termination = high-impedance
OUT_Dx outputs = high-impedance; zero
output current
When OE_N = LOW:
IN_Dx termination = 50 Ω
OUT_Dx outputs = active
IN_D4+
48
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D4+ makes a differential pair with IN_D4−.
The input to this pin must be AC coupled
externally.
IN_D4−
47
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D4− makes a differential pair with IN_D4+.
The input to this pin must be AC coupled
externally.
IN_D3+
45
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D3+ makes a differential pair with IN_D3−.
The input to this pin must be AC coupled
externally.
IN_D3−
44
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D3− makes a differential pair with IN_D3+.
The input to this pin must be AC coupled
externally.
IN_D2+
42
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D2+ makes a differential pair with IN_D2−.
The input to this pin must be AC coupled
externally.
IN_D2−
41
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D2− makes a differential pair with IN_D2+.
The input to this pin must be AC coupled
externally.
IN_D1+
39
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D1+ makes a differential pair with IN_D1−.
The input to this pin must be AC coupled
externally.
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
7 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
IN_D1−
38
Self-biasing
differential input
Low-swing differential input from display source
with PCI Express electrical signalling.
IN_D1− makes a differential pair with IN_D1+.
The input to this pin must be AC coupled
externally.
OUT_D4+
13
TMDS differential
output
HDMI compliant TMDS output. OUT_D4+ makes
a differential pair with OUT_D4−. OUT_D4+ is in
phase with IN_D4+.
OUT_D4−
14
TMDS differential
output
HDMI compliant TMDS output. OUT_D4− makes
a differential pair with OUT_D4+. OUT_D4− is in
phase with IN_D4−.
OUT_D3+
16
TMDS differential
output
HDMI compliant TMDS output. OUT_D3+ makes
a differential pair with OUT_D3−. OUT_D3+ is in
phase with IN_D3+.
OUT_D3−
17
TMDS differential
output
HDMI compliant TMDS output. OUT_D3− makes
a differential pair with OUT_D3+. OUT_D3− is in
phase with IN_D3−.
OUT_D2+
19
TMDS differential
output
HDMI compliant TMDS output. OUT_D2+ makes
a differential pair with OUT_D2−. OUT_D2+ is in
phase with IN_D2+.
OUT_D2−
20
TMDS differential
output
HDMI compliant TMDS output. OUT_D2− makes
a differential pair with OUT_D2+. OUT_D2− is in
phase with IN_D2−.
OUT_D1+
22
TMDS differential
output
HDMI compliant TMDS output. OUT_D1+ makes
a differential pair with OUT_D1−. OUT_D1+ is in
phase with IN_D1+.
OUT_D1−
23
TMDS differential
output
HDMI compliant TMDS output. OUT_D1− makes
a differential pair with OUT_D1+. OUT_D1− is in
phase with IN_D1−.
5 V CMOS
single-ended input
0 V to 5 V (nominal) input signal. This signal
comes from the DVI or HDMI sink. A HIGH value
indicates that the sink is connected; a LOW
value indicates that the sink is disconnected.
HPD_SINK is pulled down by an integrated
200 kΩ pull-down resistor.
HPD_SOURCE 7
3.3 V CMOS
single-ended output
0 V to 3.3 V (nominal) output signal. This is
level-shifted version of the HPD_SINK signal.
SCL_SOURCE 9
single-ended 3.3 V
open-drain DDC I/O
3.3 V source-side DDC clock I/O. Pulled up by
external termination to 3.3 V.
SDA_SOURCE 8
single-ended 3.3 V
open-drain DDC I/O
3.3 V source-side DDC data I/O. Pulled up by
external termination to 3.3 V.
SCL_SINK
28
single-ended 5 V
open-drain DDC I/O
5 V sink-side DDC clock I/O. Pulled up by
external termination to 5 V. Provides rise time
acceleration for LOW-to-HIGH transitions.
SDA_SINK
29
single-ended 5 V
open-drain DDC I/O
5 V sink-side DDC data I/O. Pulled up by
external termination to 5 V. Provides rise time
acceleration for LOW-to-HIGH transitions.
HPD and DDC signals
HPD_SINK
30
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
8 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
DDC_EN
32
3.3 V CMOS input
Enables the DDC buffer and level shifter.
When DDC_EN = LOW, buffer/level shifter is
disabled.
When DDC_EN = HIGH, buffer and level shifter
are enabled.
Supply and ground
VDD
3.3 V DC supply
2, 11,
15, 21,
26, 33,
40, 46
VCC
-
GND[1]
ground
1, 5,
12, 18,
24, 27,
31, 36,
37, 43
Supply voltage; 3.3 V ± 10 %.
Supply ground. All GND pins must be connected
to ground for proper operation.
Feature control signals
REXT
6
analog I/O
Current sense port used to provide an accurate
current reference for the differential outputs
OUT_Dx. For best output voltage swing
accuracy, use of a 10 kΩ resistor (1 % tolerance)
from this terminal to GND is recommended. May
also be left open-circuit or tied to either VDD or
GND. See Section 7.2 for details.
DDET
4
3.3 V input
Dongle detect enable input. When HIGH, the
dongle detect function via I2C is active. When
used in an HDMI dongle, this pin must be tied
HIGH for correct operation in accordance with
DisplayPort interoperability guidelines. When
used in a DVI dongle, this pin must be tied LOW.
When LOW, the dongle detect function will not
respond to an I2C-bus command. Must be tied to
GND or VDD either directly or via a resistor. Note
that this pin may not be left open-circuit.
PES1
10
3.3 V CMOS input
PES0
3
3.3 V CMOS input
Programming pins to activate the pre-emphasis
feature of the TMDS differential outputs. See
Section 7.3 for details. Must be tied either to
GND or VDD either directly or via a resistor. To
disable pre-emphasis, connect both to GND
(PES[1:0] = 00b). PES[1:0] = 11b is reserved for
testing purposes and should not be used in
normal application. Note that these pins may not
be left open-circuit.
34, 35
no connection
to the die
Miscellaneous
n.c.
[1]
HVQFN48 package supply ground is connected to both GND pins and exposed center pad. GND pins must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
PTN3361B_2
Product data sheet
Not connected. May be left open-circuit or tied to
GND or VDD either directly or via a resistor.
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
9 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7. Functional description
Refer to Figure 2 “Functional diagram of PTN3361B”.
The PTN3361B level shifts four lanes of low-swing AC-coupled differential input signals to
DVI and HDMI compliant open-drain current-steering differential output signals, up to
1.65 Gbit/s per lane. Speed of operation and cable length drive may be extended (by
using the programmable pre-emphasis feature) to up to 2.25 Gbit/s per lane. It has
integrated 50 Ω termination resistors for AC-coupled differential input signals. An enable
signal OE_N can be used to turn off the TMDS inputs and outputs, thereby minimizing
power consumption. The TMDS outputs are back-power safe to disallow current flow from
a powered sink while the PTN3361B is unpowered.
The PTN3361B's DDC channel provides active level shifting and buffering, allowing 3.3 V
source-side termination and 5 V sink-side termination. The sink-side DDC ports are
equipped with a rise time accelerator enabling drive of long cables or high bus
capacitance. This enables the system designer to isolate bus capacitance to meet HDMI
DDC version 1.3a distance specification. Furthermore, the DDC channel is augmented
with an I2C-bus slave ROM device that provides optional HDMI dongle detect response,
which can be enabled by dongle detect signal DDET. The PTN3361B offers back-power
safe sink-side I/Os to disallow backdrive current from the DDC clock and data lines when
power is off or when DDC is not enabled. An enable signal DCC_EN enables the DDC
level shifter block.
Remark: When used in an HDMI dongle, the DDET function must be enabled for correct
operation in accordance with DisplayPort interoperability guidelines. When used in a DVI
dongle, the DDET function must be disabled.
The PTN3361B also provides voltage translation for the Hot Plug Detect (HPD) signal
from 0 V to 5 V on the sink side to 0 V to 3.3 V on the source side.
The PTN3361B does not re-time any data. It contains no state machines except for the
DDC/I2C-bus block. No inputs or outputs of the device are latched or clocked. Because
the PTN3361B acts as a transparent level shifter, no reset is required.
7.1 Enable and disable features
PTN3361B offers different ways to enable or disable functionality, using the Output Enable
(OE_N) and DDC Enable (DDC_EN) inputs. Whenever the PTN3361B is disabled, the
device will be in Standby mode and power consumption will be minimal; otherwise the
PTN3361B will be in Active mode and power consumption will be nominal. These two
inputs each affect the operation of PTN3361B differently: OE_N affects only the TMDS
channels, and DDC_EN affects only the DDC channel. HPD_SINK does not affect either
of the channels. The following sections and truth table describe their detailed operation.
7.1.1 Hot plug detect
The HPD channel of PTN3361B functions as a level-shifting buffer to pass the HPD logic
signal from the display sink device (via input HPD_SINK) on to the display source device
(via output HPD_SOURCE).
The output logic state of HPD_SOURCE output always follows the logic state of input
HPD_SINK, regardless of whether the device is in Active or Standby mode.
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
10 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.1.2 Output Enable function (OE_N)
When input OE_N is asserted (active LOW), the IN_Dx and OUT_Dx signals are fully
functional. Input termination resistors are enabled and the internal bias circuits are turned
on.
When OE_N is de-asserted (inactive HIGH), the OUT_Dx outputs are in a
high-impedance state and drive zero output current. The IN_Dx input buffers are disabled
and IN_Dx termination is disabled. Power consumption is minimized.
Remark: Note that OE_N has no influence on the HPD_SINK input, HPD_SOURCE
output, or the SCL and SDA level shifters. OE_N only affects the high-speed TMDS
channel.
7.1.3 DDC channel enable function (DDC_EN)
The DDC_EN pin is active HIGH and can be used to isolate a badly behaved slave. When
DDC_EN is LOW, the DDC channel is turned off. The DDC_EN input should never change
state during an I2C-bus operation. Note that disabling DDC_EN during a bus operation will
hang the bus, while enabling DDC_EN during bus traffic would corrupt the I2C-bus
operation. Hence, DDC_EN should only be toggled while the bus is idle. (See I2C-bus
specification).
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
11 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.1.4 Enable/disable truth table
Table 3.
HPD_SINK, OE_N and DDC_EN enabling truth table
Inputs
Channels
HPD_SINK OE_N
DDC_EN IN_Dx
Mode
OUT_Dx[3]
DDC[4]
HPD_SOURCE[5]
[1]
[2]
LOW
LOW
LOW
50 Ω termination enabled
to VRX(bias)
high-impedance
LOW
Active; DDC
disabled
LOW
LOW
HIGH
50 Ω termination enabled
to VRX(bias)
SDA_SINK
connected to
SDA_SOURCE
and SCL_SINK
connected to
SCL_SOURCE
LOW
Active; DDC
enabled
LOW
HIGH
LOW
high-impedance
high-impedance;
zero output current
high-impedance
LOW
Standby
LOW
HIGH
HIGH
high-impedance
high-impedance;
zero output current
SDA_SINK
connected to
SDA_SOURCE
and SCL_SINK
connected to
SCL_SOURCE
LOW
Standby;
DDC
enabled
HIGH
LOW
LOW
50 Ω termination enabled
to VRX(bias)
high-impedance
HIGH
Active; DDC
disabled
HIGH
LOW
HIGH
50 Ω termination enabled
to VRX(bias)
SDA_SINK
connected to
SDA_SOURCE
and SCL_SINK
connected to
SCL_SOURCE
HIGH
Active; DDC
enabled
HIGH
HIGH
LOW
high-impedance
high-impedance;
zero output current
high-impedance
HIGH
Standby
HIGH
HIGH
HIGH
high-impedance
high-impedance;
zero output current
SDA_SINK
connected to
SDA_SOURCE
and SCL_SINK
connected to
SCL_SOURCE
HIGH
Standby;
DDC
enabled
[1]
A HIGH level on input OE_N disables only the TMDS channels.
[2]
A LOW level on input DDC_EN disables only the DDC channel.
[3]
OUT_Dx channels ‘enabled’ means outputs OUT_Dx toggling in accordance with IN_Dx differential input voltage switching.
[4]
DDC channel ‘enabled’ means SDA_SINK is connected to SDA_SOURCE and SCL_SINK is connected to SCL_SOURCE.
[5]
The HPD_SOURCE output logic state always follows the HPD_SINK input logic state.
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
12 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.2 Analog current reference
The REXT pin (pin 6) is an analog current sense port used to provide an accurate current
reference for the differential outputs OUT_Dx. For best output voltage swing accuracy, use
of a 10 kΩ resistor (1 % tolerance) connected between this terminal and GND is
recommended.
If an external 10 kΩ ± 1 % resistor is not used, this pin can be left open-circuit, or
connected to GND or VDD, either directly (0 Ω) or using pull-up or pull-down resistors of
value less than 10 kΩ. In any of these cases, the output will function normally but at
reduced accuracy over voltage and temperature of the following parameters: output levels
(VOL), differential output voltage swing, and rise and fall time accuracy.
7.3 Programmable pre-emphasis
PTN3361B includes an optional programmable pre-emphasis feature, allowing adaptor or
motherboard PCB designers to extend speed performance or support longer cable drive.
The pre-emphasis feature, when enabled, adds a selectable amount of pre-emphasis to
each bit transition by injecting a momentary current pulse (typically 200 ps to 400 ps long)
to help overcome cable or trace losses.
Pre-emphasis is not needed for normal HDMI operation at speeds below 1.65 Gbit/s and
is not required to meet eye diagram compliance. At the user's discretion, it can be enabled
in order to provide additional signal boost in difficult or lossy signaling environments such
as long cables or lossy media.
It should be noted that by enabling pre-emphasis, in addition to the AC effect of the
pre-emphasis pulse on the signal transition, also a constant DC current is added in order
to provide the necessary headroom, which will affect VOH and VOL static levels. This
should be taken into account when designing for HDMI or DVI single-ended (DC) voltage
compliance. For full HDMI or DVI compliance in normal applications, the default mode
(pre-emphasis off) is recommended.
The pre-emphasis feature is programmed by means of two CMOS input pins, PES1 and
PES0, according to Table 4:
Table 4.
PTN3361B pre-emphasis logic table
PES1 (pin 10)
PES0 (pin 3)
Level
0
0
0 dB (default
0
1
3.5 dB (150 %)
1
0
6 dB (200 %)
1
1
Test mode[1]
[1]
Should not be used in normal application.
7.4 Backdrive current protection
The PTN3361B is designed for backdrive prevention on all sink-side TMDS outputs,
sink-side DDC I/Os and the HPD_SINK input. This supports user scenarios where the
display is connected and powered, but the PTN3361B is unpowered. In these cases, the
PTN3361B will sink no more than a negligible amount of leakage current, and will block
the display (sink) termination network from driving the power supply of the PTN3361B or
that of the inactive DVI or HDMI source.
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
13 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.5 Active DDC buffer with rise time accelerator
The PTN3361B DDC channel, besides providing 3.3 V to 5 V level shifting, includes active
buffering and rise time acceleration which allows up to 18 meters bus extension for
reliable DDC applications. While retaining all the operating modes and features of the
I2C-bus system during the level shifts, it permits extension of the I2C-bus by providing
bidirectional buffering for both the data (SDA) and the clock (SCL) line as well as the
rise time accelerator on the sink-side port (SCL_SINK and SDA_SINK) enabling the bus
to drive a load up to 1400 pF or distance of 18 m on port A, and 400 pF on the
source-side port (SCL_SOURCE and SCA_SOURCE). Using the PTN3361B for DVI or
HDMI level shifting enables the system designer to isolate bus capacitance to meet HDMI
DDC version 1.3 distance specification. The SDA and SCL pins are overvoltage tolerant
and are high-impedance when the PTN3361B is unpowered or when DDC_EN is LOW.
PTN3361B has rise time accelerators on the sink-side port (SCL_SINK and SDA_SINK)
only. During positive bus transitions on the sink-side port, a current source is switched on
to quickly slew the SCL_SINK and SDA_SINK lines HIGH once the 5 V DDC bus VIL
threshold level of around 1.5 V is exceeded, and turns off as the 5 V DDC bus VIH
threshold voltage of approximately 3.5 V is approached.
7.6 I2C-bus based HDMI dongle detection
The PTN3361B includes an on-board I2C-bus slave ROM which provides a means to
detect the presence of an HDMI dongle by the system through the DDC channel,
accessible via ports SDA_SOURCE and SCL_SOURCE. This allows system vendors to
detect HDMI dongle presence through the already available DDC/I2C-bus port using a
predetermined bus sequence. Please see Section 8 for more information.
For the I2C-bus HDMI Dongle Detect function to be active, input pin DDET (dongle detect)
should be tied HIGH. When DDET is LOW, the PTN3361B will not respond to an I2C-bus
command. When used in an HDMI dongle, the DDET function must be enabled for correct
operation in accordance with DisplayPort interoperability guidelines. When used in a DVI
dongle, the DDET function must be disabled.
The HDMI dongle detection is accomplished by accessing the PTN3361B on-board
I2C-bus slave ROM using a simple sequential I2C-bus Read operation as described below.
7.6.1 Slave address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
1
0
0
0
0
0
0
R/W
slave address
002aad340
R = 1; W = 0
Fig 4.
PTN3361B slave address
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
14 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.6.2 Read operation
The slave device address of PTN3361B is 80h. PTN3361B will respond to a Read
command to slave address 81h (PTN3361B will respond with an ACK to a Write
command to address 80h). Following the Read command, the PTN3361B will respond
with the contents of its internal ROM, as a sequence of 16 bytes, for as long as the master
continues to issue clock edges with an acknowledge after each byte. The 16-byte
sequence represents the ‘DP-HDMI ADAPTOR<EOT>’ symbol converted to ASCII and is
documented in Table 5.
The PTN3361B auto-increments its internal ROM address pointer (0h through Fh) as long
as it continues to receive clock edges from the master with an acknowledge after each
byte. If the master continues to issue clock edges past the 16th byte, the PTN3361B will
respond with a data byte of FFh. If the master does not acknowledge a received byte, the
PTN3361B internal address pointer will be reset to 0 and a new Read sequence should be
started by the master. Access to the 16-byte is by sequential read only as described
above; there is no random-access possible to any specific byte in the ROM.
Table 5.
DisplayPort - HDMI Adaptor Detection ROM content
Internal pointer
offset (hex)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Data (hex)
44
50
2D
48
44
4D
49
20
41
44
41
50
54
4F
52
04
Table 6.
HDMI dongle detect transaction sequence outline
Phase I2C transaction
Transmitting
Bit
7
6
5
4
Status
3
2
1
R/W
Master
Slave
optional
-
1
START
master
2
Write command
master
3
Acknowledge
slave
4
Word address offset
master
5
Acknowledge
slave
6
STOP
master
optional
-
7
START
master
mandatory
-
8
Read command
master
mandatory
-
9
Acknowledge
slave
-
mandatory
10
Read data
slave
11
Acknowledge
master
12
Read data
slave
13
:
:
:
:
:
40
Read data
slave
41
Not Acknowledge
42
STOP
1
0
0
0
0
0
0
0
word address offset data byte
1
0
0
0
0
0
data byte at offset 0
data byte at offset 1
0
1
optional
-
-
mandatory
optional
-
-
mandatory
-
mandatory
mandatory
-
-
mandatory
-
-
-
-
-
mandatory
master
mandatory
-
master
mandatory
-
data byte at offset 15
Remark: If the slave does not acknowledge the above transaction sequence, the entire
sequence should be retried by the source.
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
15 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
7.7 Characteristics of the I2C-bus
The I2C-bus is for 2-way, 2-line communication between different ICs or modules. The two
lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be
connected to a positive supply via a pull-up resistor when connected to the output stages
of a device. Data transfer may be initiated only when the bus is not busy.
7.7.1 Bit transfer
One data bit is transferred during each clock phase. The data on the SDA line must
remain stable during the HIGH period of the clock pulse as changes in the data line at this
time will be interpreted as control signals (see Figure 5).
SDA
SCL
data line
stable;
data valid
Fig 5.
change
of data
allowed
mba607
Bit transfer
7.7.2 START and STOP conditions
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW
transition of the data line, while the clock is HIGH is defined as the START condition (S). A
LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition (P). See Figure 6.
SDA
SCL
S
P
START condition
STOP condition
mba608
Fig 6.
Definition of START and STOP conditions.
7.7.3 System configuration
An I2C-bus device generating a message is a ‘transmitter’, a device receiving is the
‘receiver’. The device that controls the message is the ‘master’ and the devices which are
controlled by the master are the ‘slaves’. See Figure 7.
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
16 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
SDA
SCL
MASTER
TRANSMITTER/
RECEIVER
SLAVE
TRANSMITTER/
RECEIVER
SLAVE
RECEIVER
MASTER
TRANSMITTER/
RECEIVER
MASTER
TRANSMITTER
002aaa381
Fig 7.
System configuration
7.7.4 Acknowledge
The number of data bytes transferred between the START and the STOP conditions from
transmitter to receiver is not limited. Each byte of eight bits is followed by one
acknowledge bit. The acknowledge bit is a HIGH level put on the bus by the transmitter,
whereas the master generates an extra acknowledge related clock pulse.
A slave receiver which is addressed must generate an acknowledge after the reception of
each byte. Also, a master must generate an acknowledge after the reception of each byte
that has been clocked out of the slave transmitter. The device that acknowledges has to
pull down the SDA line during the acknowledge clock pulse so that the SDA line is stable
LOW during the HIGH period of the acknowledge related clock pulse, set-up and hold
times must be taken into account.
A master receiver must signal an end of data to the transmitter by not generating as
acknowledge on the last byte that has been clocked out of the slave. In this event, the
transmitter must leave the data line HIGH to enable the master to generate a STOP
condition.
data output
by transmitter
not acknowledge
data output
by receiver
acknowledge
SCL from master
1
S
START
condition
Fig 8.
8
9
clock pulse for
acknowledgement
002aaa987
Acknowledgement on the I2C-bus
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
17 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
8. Application design-in information
8.1 Dongle or cable adaptor detect discovery mechanism
The PTN3361B supports the source-side dongle detect discovery mechanism described
in VESA DisplayPort Interoperability Guideline Version 1.1.
When a source-side cable adaptor is plugged into a multi-mode source device that
supports multiple standards such as DisplayPort, DVI and HDMI, a discovery mechanism
is needed for the multi-mode source to configure itself for outputting DisplayPort, DVI or
HDMI compliant signals through the dongle or cable adaptor. The discovery mechanism
ensures that a multi-mode source device only sends either DVI or HDMI signals when a
valid DVI or HDMI cable adaptor is present.
The VESA Interoperability Guideline recommends that a multi-mode source to power up
with both DDC and AUX CH disabled. After initialization, the source device can use a
variety of mechanisms to decide whether a dongle or cable adaptor is present by
detecting pin 13 on the DisplayPort connector. Depending on the voltage level detected at
pin 13, the source configures itself either:
• as a DVI or HDMI source (see below paragraph for detection between DVI and HDMI),
and enables DDC, while keeping AUX CH disabled, or
• as a DisplayPort source and enables AUX CH, while keeping DDC disabled.
The monitoring of the voltage level on pin 13 by a multi-mode source device is optional. A
multi-mode source may also e.g. attempt an AUX CH read transaction and, if the
transaction fails, a DDC transaction to discover the presence/absence of a cable adaptor.
Furthermore, a source that supports both DVI and HDMI can discover whether a DVI or
HDMI dongle or cable adaptor is present by using a variety of discovery procedures. One
possible method is to check the voltage level of pin 14 of the DisplayPort connector.
Pin 14 also carries CEC signal used for HDMI. Please note that other HDMI devices on
the CEC line may be momentarily pulling down pin 14 as a part of CEC protocol.
The VESA Interoperability Guideline recommends that a multi-mode source should
distinguish a source-side HDMI cable adaptor from a DVI cable adaptor by checking the
DDC buffer ID as described in Section 7.6 “I2C-bus based HDMI dongle detection”. While
it is optional for a multi-mode source to use the I2C-bus based HDMI dongle detection
mechanism, it is mandatory for HDMI dongle or cable adaptor to respond to the I2C-bus
read command described in Section 7.7. The PTN3361B provides an integrated I2C-bus
slave ROM to support this mandatory HDMI dongle detect mechanism for HDMI dongles.
For a DisplayPort-to-HDMI source-side dongle or cable adaptor, DDET must be tied HIGH
to enable the I2C-bus based HDMI dongle detection response function of PTN3361B. For
a DisplayPort-to-DVI sink-side dongle or cable adaptor, DDET must be tied LOW to
disable the function.
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
18 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
9. Limiting values
Table 7.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
VDD
supply voltage
VI
input voltage
Min
Max
Unit
−0.3
+4.6
V
3.3 V CMOS inputs
−0.3
VDD + 0.5
V
5.0 V CMOS inputs
−0.3
6.0
V
−65
+150
°C
HBM
[1]
-
7000
V
CDM
[2]
-
1000
V
storage temperature
Tstg
VESD
electrostatic discharge
voltage
[1]
Human Body Model: ANSI/EOS/ESD-S5.1-1994, standard for ESD sensitivity testing, Human Body Model Component level; Electrostatic Discharge Association, Rome, NY, USA.
[2]
Charged-Device Model: ANSI/EOS/ESD-S5.3-1-1999, standard for ESD sensitivity testing,
Charged-Device Model - Component level; Electrostatic Discharge Association, Rome, NY, USA.
10. Recommended operating conditions
Table 8.
Recommended operating conditions
Symbol
Parameter
VDD
supply voltage
Conditions
VI
input voltage
3.3 V CMOS inputs
5.0 V CMOS inputs
VI(AV)
average input voltage
IN_Dn+, IN_Dn− inputs
[1]
Rref(ext)
external reference
resistance
connected between pin
REXT (pin 6) and GND
[2]
Tamb
ambient temperature
operating in free air
Min
Typ
Max
Unit
3.0
3.3
3.6
V
0
-
3.6
V
0
-
5.5
V
-
0
-
V
-
10 ± 1 %
-
kΩ
−40
-
+85
°C
[1]
Input signals to these pins must be AC-coupled.
[2]
Operation without external reference resistor is possible but will result in reduced output voltage swing
accuracy. For details, see Section 7.2.
10.1 Current consumption
Table 9.
Current consumption
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IDD
supply current
OE_N = 1 and DDC_EN = 0;
Standby mode
-
-
2
mA
OE_N = 0; Active mode
-
27
50
mA
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
19 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
11. Characteristics
11.1 Differential inputs
Table 10.
Symbol
UI
Differential input characteristics for IN_Dx signals
Parameter
unit
Conditions
interval[1]
[2]
[3]
VRX_DIFFp-p
differential input peak-to-peak voltage
TRX_EYE
receiver eye time
minimum eye width at
IN_Dx input pair
Vi(cm)M(AC)
peak common-mode input voltage (AC)
includes all frequencies
above 30 kHz
ZRX_DC
DC input impedance
VRX(bias)
ZI(se)
[4]
Min
Typ
Max
Unit
600
-
4000
ps
0.175
-
1.200
V
0.8
-
-
UI
-
-
100
mV
40
50
60
Ω
bias receiver voltage
[5]
1.0
1.2
1.4
V
single-ended input impedance
[6]
100
-
-
kΩ
inputs in
high-impedance state
[1]
UI (unit interval) = tbit (bit time).
[2]
UI is determined by the display mode. Nominal bit rate ranges from 250 Mbit/s to 1.65 Gbit/s per lane. Nominal UI at
1.65 Gbit/s = 606 ps.
[3]
VRX_DIFFp-p = 2 × |VRX_D+ − VRX_D−|. Applies to IN_Dx signals.
[4]
Vi(cm)M(AC) = |VRX_D+ + VRX_D−| / 2 − VRX(cm).
VRX(cm) = DC (avg) of |VRX_D+ + VRX_D−| / 2.
[5]
Intended to limit power-up stress on chip set’s PCIe output buffers.
[6]
Differential inputs will switch to a high-impedance state when OE_N is HIGH.
PTN3361B_2
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Rev. 02 — 7 October 2009
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PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
11.2 Differential outputs
The level shifter’s differential outputs are designed to meet HDMI version 1.3 and
DVI version 1.0 specifications.
Table 11.
Symbol
Differential output characteristics for OUT_Dx signals
Parameter
Conditions
Min
Typ
VTT − 0.01 VTT
Max
Unit
VOH(se)
single-ended HIGH-level
output voltage
PES[1:0] = 00b
[1]
VOL(se)
single-ended LOW-level
output voltage
PES[1:0] = 00b
[2]
VTT − 0.60 VTT − 0.50 VTT − 0.40 V
∆VO(se)
single-ended output
voltage variation
logic 1 and logic 0 state applied
respectively to differential inputs
IN_Dn; Rref(ext) connected;
see Table 8
[3]
450
500
600
mV
IOZ
OFF-state output current
single-ended
-
-
10
µA
tr
rise time
20 % to 80 %
75
-
240
ps
tf
fall time
80 % to 20 %
skew time
tsk
jitter time
tjit
[1]
VTT + 0.01 V
75
-
240
ps
intra-pair
[4]
-
-
10
ps
inter-pair
[5]
-
-
250
ps
jitter contribution
[6]
-
-
7.4
ps
VTT is the DC termination voltage in the HDMI or DVI sink. VTT is nominally 3.3 V.
[2]
The open-drain output pulls down from VTT.
[3]
Swing down from TMDS termination voltage (3.3 V ± 10 %).
[4]
This differential skew budget is in addition to the skew presented between IN_D+ and IN_D− paired input pins.
[5]
This lane-to-lane skew budget is in addition to skew between differential input pairs.
[6]
Jitter budget for differential signals as they pass through the level shifter.
11.3 HPD_SINK input, HPD_SOURCE output
Table 12.
Symbol
HPD characteristics
Parameter
Conditions
Min
[1]
Typ
Max
Unit
VIH
HIGH-level input voltage
HPD_SINK
2.0
5.0
5.3
V
VIL
LOW-level input voltage
HPD_SINK
0
-
0.8
V
ILI
input leakage current
HPD_SINK
-
-
15
µA
VOH
HIGH-level output voltage
HPD_SOURCE
2.5
-
VDD
V
VOL
LOW-level output voltage
HPD_SOURCE
0
-
0.2
V
tPD
propagation delay
from HPD_SINK to HPD_SOURCE;
50 % to 50 %
[2]
-
-
200
ns
tt
transition time
HPD_SOURCE rise/fall; 10 % to 90 %
[3]
1
-
20
ns
HPD_SINK input pull-down resistor
[4]
100
200
300
kΩ
pull-down resistance
Rpd
[1]
Low-speed input changes state on cable plug/unplug.
[2]
Time from HPD_SINK changing state to HPD_SOURCE changing state. Includes HPD_SOURCE rise/fall time.
[3]
Time required to transition from VOH to VOL or from VOL to VOH.
[4]
Guarantees HPD_SINK is LOW when no display is plugged in.
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
21 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
11.4 OE_N, DDC_EN and DDET inputs
Table 13.
OE_N, DDC_EN and DDET input characteristics
Symbol
Parameter
VIH
HIGH-level input voltage
VIL
LOW-level input voltage
input leakage current
ILI
[1]
Conditions
[1]
OE_N pin
Min
Typ
2.0
-
-
Max
Unit
V
-
0.8
V
-
10
µA
Measured with input at VIH maximum and VIL minimum.
11.5 DDC characteristics
Table 14. DDC characteristics
VDD = 3.0 V to 3.3 V
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Input and output SCL_SOURCE and SDA_SOURCE
VIH
HIGH-level input voltage
0.7VDD
-
-
V
VIL
LOW-level input voltage
−0.5
-
+0.3VDD
V
VILc
contention LOW-level input voltage
−0.5
0.4
-
V
ILI
input leakage current
VI = 3.6 V
-
-
±1
µA
IIL
LOW-level input current
VI = 0.2 V
-
-
10
µA
VOL
LOW-level output voltage
IOL = 100 µA or 6 mA
0.47
0.52
0.6
V
VOL−VILc
difference between LOW-level output
and LOW-level input voltage
contention
guaranteed by design
-
-
70
mV
Cio
input/output capacitance
VI = 3 V or 0 V;
VDD = 3.3 V
-
6
7
pF
VI = 3 V or 0 V; VDD = 0 V
-
6
7
pF
Input and output SDA_SINK and SCL_SINK
VIH
HIGH-level input voltage
1.5
-
5.5
V
VIL
LOW-level input voltage
−0.5
-
+1.5
V
ILI
input leakage current
VDD = VI = 5.5 V
-
-
±1
µA
IIL
LOW-level input current
VI = 0.2 V
-
-
10
µA
VOL
LOW-level output voltage
IOL = 6 mA
-
0.1
0.2
V
Cio
input/output capacitance
VI = 3 V or 0 V;
VDD = 3.3 V
-
-
7
pF
VI = 3 V or 0 V; VDD = 0 V
-
6
7
pF
VDD = 4.5 V;
slew rate = 1.25 V/µs
-
6
-
mA
Itrt(pu)
transient boosted pull-up current
PTN3361B_2
Product data sheet
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Rev. 02 — 7 October 2009
22 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
12. Package outline
HVQFN48: plastic thermal enhanced very thin quad flat package; no leads;
48 terminals; body 7 x 7 x 0.85 mm
A
B
D
SOT619-1
terminal 1
index area
A
E
A1
c
detail X
C
e1
1/2 e
e
24
y
y1 C
v M C A B
w M C
b
13
L
25
12
e
e2
Eh
1/2 e
1
36
terminal 1
index area
48
37
Dh
X
0
2.5
scale
DIMENSIONS (mm are the original dimensions)
UNIT
mm
A(1)
max.
A1
b
1
0.05
0.00
0.30
0.18
5 mm
c
D (1)
Dh
E (1)
Eh
0.2
7.1
6.9
5.25
4.95
7.1
6.9
5.25
4.95
e
e1
5.5
0.5
e2
L
v
5.5
0.5
0.3
0.1
w
0.05
y
y1
0.05
0.1
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
Fig 9.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
JEITA
SOT619-1
---
MO-220
---
EUROPEAN
PROJECTION
ISSUE DATE
01-08-08
02-10-18
Package outline SOT619-1 (HVQFN48)
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
23 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
13. Soldering of SMD packages
This text provides a very brief insight into a complex technology. A more in-depth account
of soldering ICs can be found in Application Note AN10365 “Surface mount reflow
soldering description”.
13.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to
Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both
the mechanical and the electrical connection. There is no single soldering method that is
ideal for all IC packages. Wave soldering is often preferred when through-hole and
Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not
suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high
densities that come with increased miniaturization.
13.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from
a standing wave of liquid solder. The wave soldering process is suitable for the following:
• Through-hole components
• Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless
packages which have solder lands underneath the body, cannot be wave soldered. Also,
leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered,
due to an increased probability of bridging.
The reflow soldering process involves applying solder paste to a board, followed by
component placement and exposure to a temperature profile. Leaded packages,
packages with solder balls, and leadless packages are all reflow solderable.
Key characteristics in both wave and reflow soldering are:
•
•
•
•
•
•
Board specifications, including the board finish, solder masks and vias
Package footprints, including solder thieves and orientation
The moisture sensitivity level of the packages
Package placement
Inspection and repair
Lead-free soldering versus SnPb soldering
13.3 Wave soldering
Key characteristics in wave soldering are:
• Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are
exposed to the wave
• Solder bath specifications, including temperature and impurities
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
24 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
13.4 Reflow soldering
Key characteristics in reflow soldering are:
• Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 10) than a SnPb process, thus
reducing the process window
• Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
• Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic). In addition, the peak temperature must be low enough that the
packages and/or boards are not damaged. The peak temperature of the package
depends on package thickness and volume and is classified in accordance with
Table 15 and 16
Table 15.
SnPb eutectic process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
≥ 350
< 2.5
235
220
≥ 2.5
220
220
Table 16.
Lead-free process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
350 to 2000
> 2000
< 1.6
260
260
260
1.6 to 2.5
260
250
245
> 2.5
250
245
245
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reflow
soldering, see Figure 10.
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
25 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
maximum peak temperature
= MSL limit, damage level
temperature
minimum peak temperature
= minimum soldering temperature
peak
temperature
time
001aac844
MSL: Moisture Sensitivity Level
Fig 10. Temperature profiles for large and small components
For further information on temperature profiles, refer to Application Note AN10365
“Surface mount reflow soldering description”.
14. Abbreviations
Table 17.
Abbreviations
Acronym
Description
CDM
Charged-Device Model
CEC
Consumer Electronics Control
DDC
Data Display Channel
DVI
Digital Visual Interface
EMI
ElectroMagnetic Interference
ESD
ElectroStatic Discharge
HBM
Human Body Model
HDMI
High-Definition Multimedia Interface
HPD
Hot Plug Detect
I2C-bus
Inter-IC bus
I/O
Input/Output
NMOS
Negative-channel Metal-Oxide Semiconductor
ROM
Read-Only Memory
TMDS
Transition Minimized Differential Signaling
VESA
Video Electronic Standards Association
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
26 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
15. Revision history
Table 18.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
PTN3361B_2
20091007
Product data sheet
-
PTN3361B_1
Modifications:
PTN3361B_1
•
Table 11 “Differential output characteristics for OUT_Dx signals”, Table note [6]: deleted second
sentence
20090929
Product data sheet
-
PTN3361B_2
Product data sheet
-
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
27 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
16. Legal information
16.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
16.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
16.3 Disclaimers
General — Information in this document is believed to be accurate and
reliable. However, NXP Semiconductors does not give any representations or
warranties, expressed or implied, as to the accuracy or completeness of such
information and shall have no liability for the consequences of use of such
information.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in medical, military, aircraft,
space or life support equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) may cause permanent
damage to the device. Limiting values are stress ratings only and operation of
the device at these or any other conditions above those given in the
Characteristics sections of this document is not implied. Exposure to limiting
values for extended periods may affect device reliability.
Terms and conditions of sale — NXP Semiconductors products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.nxp.com/profile/terms, including those pertaining to warranty,
intellectual property rights infringement and limitation of liability, unless
explicitly otherwise agreed to in writing by NXP Semiconductors. In case of
any inconsistency or conflict between information in this document and such
terms and conditions, the latter will prevail.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
grant, conveyance or implication of any license under any copyrights, patents
or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from national authorities.
16.4 Licenses
Purchase of NXP ICs with HDMI technology
Use of an NXP IC with HDMI technology in equipment that complies with
the HDMI standard requires a license from HDMI Licensing LLC, 1060 E.
Arques Avenue Suite 100, Sunnyvale CA 94085, USA, e-mail:
[email protected].
16.5 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
17. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
PTN3361B_2
Product data sheet
© NXP B.V. 2009. All rights reserved.
Rev. 02 — 7 October 2009
28 of 29
PTN3361B
NXP Semiconductors
HDMI/DVI level shifter with dongle detect and DDC buffer
18. Contents
1
2
2.1
2.2
2.3
2.4
2.5
3
4
5
6
6.1
6.2
7
7.1
7.1.1
7.1.2
7.1.3
7.1.4
7.2
7.3
7.4
7.5
7.6
7.6.1
7.6.2
7.7
7.7.1
7.7.2
7.7.3
7.7.4
8
8.1
9
10
10.1
11
11.1
11.2
11.3
11.4
11.5
12
13
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
High-speed TMDS level shifting . . . . . . . . . . . . 3
DDC level shifting . . . . . . . . . . . . . . . . . . . . . . . 3
HDMI dongle detect support. . . . . . . . . . . . . . . 3
HPD level shifting . . . . . . . . . . . . . . . . . . . . . . . 3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ordering information . . . . . . . . . . . . . . . . . . . . . 4
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 5
Pinning information . . . . . . . . . . . . . . . . . . . . . . 6
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 7
Functional description . . . . . . . . . . . . . . . . . . 10
Enable and disable features . . . . . . . . . . . . . . 10
Hot plug detect . . . . . . . . . . . . . . . . . . . . . . . . 10
Output Enable function (OE_N) . . . . . . . . . . . 11
DDC channel enable function (DDC_EN). . . . 11
Enable/disable truth table . . . . . . . . . . . . . . . . 12
Analog current reference . . . . . . . . . . . . . . . . 13
Programmable pre-emphasis . . . . . . . . . . . . . 13
Backdrive current protection . . . . . . . . . . . . . . 13
Active DDC buffer with rise time accelerator . 14
I2C-bus based HDMI dongle detection . . . . . . 14
Slave address . . . . . . . . . . . . . . . . . . . . . . . . . 14
Read operation . . . . . . . . . . . . . . . . . . . . . . . . 15
Characteristics of the I2C-bus . . . . . . . . . . . . . 16
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
START and STOP conditions . . . . . . . . . . . . . 16
System configuration . . . . . . . . . . . . . . . . . . . 16
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . 17
Application design-in information . . . . . . . . . 18
Dongle or cable adaptor detect discovery
mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 19
Recommended operating conditions. . . . . . . 19
Current consumption . . . . . . . . . . . . . . . . . . . 19
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 20
Differential inputs . . . . . . . . . . . . . . . . . . . . . . 20
Differential outputs . . . . . . . . . . . . . . . . . . . . . 21
HPD_SINK input, HPD_SOURCE output . . . . 21
OE_N, DDC_EN and DDET inputs. . . . . . . . . 22
DDC characteristics . . . . . . . . . . . . . . . . . . . . 22
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 23
Soldering of SMD packages . . . . . . . . . . . . . . 24
13.1
13.2
13.3
13.4
14
15
16
16.1
16.2
16.3
16.4
16.5
17
18
Introduction to soldering. . . . . . . . . . . . . . . . .
Wave and reflow soldering . . . . . . . . . . . . . . .
Wave soldering. . . . . . . . . . . . . . . . . . . . . . . .
Reflow soldering. . . . . . . . . . . . . . . . . . . . . . .
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . .
Revision history . . . . . . . . . . . . . . . . . . . . . . .
Legal information . . . . . . . . . . . . . . . . . . . . . .
Data sheet status . . . . . . . . . . . . . . . . . . . . . .
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . .
Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . .
Contact information . . . . . . . . . . . . . . . . . . . .
Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24
24
24
25
26
27
28
28
28
28
28
28
28
29
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2009.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 7 October 2009
Document identifier: PTN3361B_2