TPD12S016 具有 I2C 电平转换缓冲器、12 通道 ESD 保护和限流负载开关的 HDMI 配套芯片
1 特性
- 符合 HDMI 兼容性测试，无需任何外部组件
- IEC 61000-4-2 静电放电 (ESD) 保护
- ±8kV 接触放电
- 支持高清多媒体接口 (HDMI) 1.4 数据速率
- 与 D 类和 C 类引脚映射相匹配
- 采用超低差分电容匹配 (0.05pF) 为四个差分对提供 8 通道 ESD 保护
- HDMI 5V_OUT 引脚上具有 55mA 电流限制的片上负载开关
- 自动方向感应 I2C 电平转换器，采用单触发电路驱动长 HDMI 电缆（750pF 负载）
- HDMI 连接器侧端口具有反向驱动保护
- 遵照 HDMI 规范集成上拉和下拉电阻
- 采用节约空间的 24 引脚 RKT 封装和 24 引脚 TSSOP 封装
2 应用范围
- 手机
- 电子书
- 便携式媒体播放器
- 机顶盒
3 说明
TPD12S016 是一款单芯片高清多媒体接口 (HDMI) 器件，具有自动方向感应 I2C 电压电平转换缓冲器、负载开关和集成式低电容高速静电放电 (ESD) 瞬态电压抑制 (TVS) 保护二极管。通过 55mA 限流 5V 输出 (5V_OUT) 为 HDMI 电力线供电。5V_OUT 和热插拔检测 (HPD) 电路的控制与 LS_OE 控制信号无关，其通过 CT_HPD 引脚进行控制，使得在启用 HDMI 链路前即可激活检测方案（5V_OUT 和 HPD）。SDA、SCL 和 CEC 线路上拉到 A 侧的 VCCA。在 B 侧，CEC_B 引脚上拉到内部 3.3V 电源轨，SCL_B 和 SDA_B 均上拉到 5V 电源轨 (5V_OUT)。SCL 和 SDA 引脚满足 I2C 规范，可驱动高达 750pF 电容负载，超出了 HDMI 1.4 规范。HPD_B 端口配有毛刺脉冲滤波器，可在插入 HDMI 连接器时避免由插座跳起引起的错误检测。TPD12S016 的 5V_OUT 引脚具有反向电流阻断功能。系统断电时，SCL_B、SDA_B 和 CEC_B 引脚也具有反向电流阻断功能。
器件信息(1)
| 器件型号 | 封装 | 封装尺寸（标称值） |
|---|---|---|
| TPD12S016 | QFN (24) | 4.00mm x 2.00mm |
| TSSOP (24) | 7.80mm × 6.40mm |
- 要了解所有可用封装，请见数据表末尾的可订购米6体育平台手机版_好二三四附录。
简化电路原理图
4 修订历史记录
Changes from E Revision (December 2014) to F Revision
- Added test condition frequency to capacitance Go
- Added test condition frequency to capacitance Go
- 已添加 社区资源 Go
Changes from D Revision (August 2013) to E Revision
- Added 处理额定值表，特性 描述部分，器件功能模式，应用和实施部分，电源相关建议部分，布局部分，器件和文档支持部分以及机械、封装和可订购信息部分Go
Changes from * Revision (January 2013) to A Revision
- Added Eye Diagram Using EVM Without TPD12S016 for the TMDS Lines at 1080p, 340MHz Pixel Clock, 3.4GbpsGo
- Added Eye Diagram Using EVM with TPD12S016 for the TMDS Lines at 1080p, 340MHz Pixel Clock, 3.4GbpsGo
Changes from A Revision (February 2013) to B Revision
- Added PW and RKT packages values for IO capacitanceGo
- Added LOAD SWITCH ILEAKAGE_REVERSE vs V5V_OUT graph.Go
- Updated Circuit Schematic Diagram.Go
Changes from B Revision (February 2013) to C Revision
- Updated table formatting.Go
Changes from C Revision (August 2013) to D Revision
- Updated power savings options table.Go
5 Pin Configuration and Functions
Pin Functions
| PIN | TYPE | DESCRIPTION | ||
|---|---|---|---|---|
| NAME | RKT | PW | ||
| D–, D+ | 16, 17, 19 to 22 | 17, 18, 20 to 23 | IO | HDMI TMDS data. Connect to HDMI controller and HDMI connector directly |
| CLK+, CLK– | 14, 15 | 15, 16 | IO | HDMI TMDS clock. Connect to HDMI controller and HDMI connector directly |
| HPD_A | 3 | 4 | O | Hot plug detect output referenced to VCCA. Connect to HDMI controller hot plug detect input pin |
| HPD_B | 9 | 10 | I | Hot plug detect input. Connect directly to HDMI connector hot plug detect pin |
| CEC_A | 24 | 1 | IO | HDMI controller side CEC signal pin referenced to VCCA. Connect to HDMI controller |
| CEC_B | 6 | 7 | IO | HDMI connector side CEC signal pin referenced to internal 3.3-V supply. Connect to HDMI connector CEC pin |
| SCL_A | 1 | 2 | IO | HDMI controller side SCL signal pin referenced to VCCA. Connect to HDMI controller |
| SCL_B | 7 | 8 | IO | HDMI connector side SCL signal pin referenced to 5V_OUT supply. Connect to HDMI connector SCL pin |
| SDA_A | 2 | 3 | IO | HDMI controller side SDA signal pin referenced to VCCA. Connect to HDMI controller |
| SDA_B | 8 | 9 | IO | HDMI connector side SDA signal pin referenced to 5V_OUT supply. Connect to HDMI connector SDA pin |
| LS_OE | 4 | 5 | I | Disables the Level shifters when OE = L. The OE pin is referenced to VCCA |
| CT_HPD | 11 | 12 | I | Disables the load switch and HPD_B when CT_HPD = L. The CT_HPD is referenced to VCCA |
| VCC5V | 10 | 11 | PWR | Internal 5-V supply (input to the load switch) |
| VCCA | 23 | 24 | PWR | Internal PCB low voltage supply (same as the HDMI controller chip supply) |
| 5V_OUT | 12 | 13 | O | External 5-V supply (output of the load switch) |
| GND | 5, 13, 18 | 6, 14, 19 | GND | Connect to system ground plane |