The TPD12S015 device is an integrated HDMI ESD solution. The device pin mapping matches the HDMI Type C and Type D connector with four differential pairs. This device offers eight low-capacitance ESD clamps, allowing HDMI 1.3 or 1.4 data rates. The integrated ESD clamps and resistors provide good matching between each differential signal pair, which allows an advantage over discrete ESD clamp solutions where variations between ESD clamps degrade the differential signal quality.
The TPD12S015 provides a regulated 5-V output (5VOUT) for sourcing the HDMI power line. The regulated 5-V output supplies up to 55 mA to the HDMI receiver. The control of 5VOUT and the hot plug detect (HPD) circuitry is independent of the LS_OE control signal and is controlled by the CT_CP_HPD pin. This independent control enables the detection scheme (5VOUT + HPD) to be active before enabling the HDMI link.
There are three noninverting, bidirectional translation circuits for the SDA, SCL, and CEC lines. Each have a common power rail (VCCA) on the A side from 1.1 V to 3.6 V . On the B side, the SCL_B and SDA_B each have an internal 1.75-kΩ pullup connected to the regulated 5-V rail (5VOUT). The SCL and SDA pins meet the I2C specification and drive up to 750-pF loads. The CEC_B pin has an internal 27-kΩ pullup to an internal 3.3-V supply.
The HPD_B port has a glitch filter to avoid false detection due to the bouncing while inserting the HDMI plug.
The TPD12S015 provides IEC61000-4-2 (Level 4) ESD protection. This device is offered in a space-saving 1.6-mm × 2.8-mm wafer-level chip scale package [DSBGA (YFF)] with a 0.4-mm pitch.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TPD12S015 | DSBGA (28) | 1.56 mm × 2.76 mm |
Changes from E Revision (June 2013) to F Revision
Changes from D Revision (April 2012) to E Revision
Changes from C Revision (November 2010) to D Revision
Changes from B Revision (July 2010) to C Revision
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
5VOUT | F1 | Pwr O | DC-DC output. The 5-V power pin can supply 55-mA regulated current to the HDMI receiver. Separate DC-DC converter control pin CT_CP_HPD disables the DC-DC converter when operating at low-power mode. |
CEC_A | B2 | I/O | System-side CEC bus I/O. This pin is bidirectional and referenced to VCCA. |
CEC_B | D3 | I/O | HDMI-side CEC bus I/O. This pin is bidirectional and referenced to the 3.3-V internal supply. |
CLK– | G4 | ESD | High-speed ESD clamp: provides ESD protection to the high-speed HDMI differential data lines. |
CLK+ | F4 | ||
CT_CP_HPD | D1 | Ctrl | DC-DC Enable. Enables the DC-DC converter and HPD circuitry when CT_CP_HPD = H. The CT_CP_HPD is referenced to VCCA. |
D0– | E4 | ESD | High-speed ESD clamp: provides ESD protection to the high-speed HDMI differential data lines. |
D0+ | D4 | ||
D1– | C4 | ||
D1+ | B4 | ||
D2– | A4 | ||
D2+ | A3 | ||
FB | E1 | I | Feedback input. This pin is a feedback control pin for the DC-DC converter. It must be connected to 5VOUT. |
GND | B3, C3, D2, E2 |
— | Device ground |
HPD_A | C2 | O | System-side output for the hot plug detect. This pin is unidirectional and is referenced to VCCA. |
HPD_B | G3 | I | HDMI-side input for the hot plug detect. This pin is unidirectional and is referenced to 5VOUT. |
LS_OE | A1 | Ctrl | Level shifter enable. This pin is referenced to VCCA. Enables level shifters and LDO when OE = H. |
PGND | G1 | — | DC-DC converter ground. This pin should be tied externally to the system GND plane. See Layout Guidelines. |
SCL_A | B1 | I/O | System-side input and output for I2C bus. This pin is bidirectional and referenced to VCCA. |
SCL_B | E3 | I/O | HDMI-side input and output for I2C bus. This pin is bidirectional and referenced to 5VOUT. |
SDA_A | C1 | I/O | System-side input and output for I2C bus. This pin is bidirectional and referenced to VCCA. |
SDA_B | F3 | I/O | HDMI-side input and output for I2C bus. This pin is bidirectional and referenced to 5VOUT. |
SW | F2 | I | Switch input. This pin is the inductor input for the DC-DC converter. |
VBAT | G2 | Supply | Battery supply. This voltage is typically 2.3 V to 5.5 V. |
VCCA | A2 | Supply | System-side supply. This voltage is typically 1.2 V to 3.3 V from the core microcontroller. |
1 | 2 | 3 | 4 | |
---|---|---|---|---|
A | LS_OE | VCCA | D2+ | D2– |
B | SCL_A | CEC_A | GND | D1+ |
C | SDA_A | HPD_A | GND | D1– |
D | CT_CP_HPD | GND | CEC_B | D0+ |
E | FB | GND | SCL_B | D0– |
F | 5VOUT | SW | SDA_B | CLK+ |
G | PGND | VBAT | HPD_B | CLK– |