Preliminary Datasheet TCB702FNG (Toshiba) - 7
| 制造商 | Toshiba |
| 描述 | Maximum Power 45 W BTL × 4-ch Audio Power IC with Built-in Self-Diagnostics |
| 页数 / 页 | 52 / 7 — Preliminary. 6.2.2. Standalone Control Mode (Legacy Mode) |
| 文件格式/大小 | PDF / 2.4 Mb |
| 文件语言 | 英语 |
Preliminary. 6.2.2. Standalone Control Mode (Legacy Mode)
该数据表的模型线
文件文字版本
Preliminary
TCB702FNG
6.2.2. Standalone Control Mode (Legacy Mode)
This product also supports a standby and a mute control (hardware standby / mute) without using I2C bus communication. This product is set to the standalone mode by pulling down the ADSEL pin (Pin 27) at 10 kΩ or more, or open. (1) Standby state When the Stby pin (Pin 22) is set to 0.8 V or less, the IC enters to the standby state. At that time, the current which flows to the IC becomes 1 µA (typ.). (2) Standby OFF / Mute ON state When the voltage of 2.2 V or more is supplied to the Stby pin (Pin 22), the charging to the capacitor connected to the Ripple pin (Pin 13) starts. Then the hardware standby state is released and enters to the hardware mute state. (3) Standby / Mute Off <=> ON state After entering to the state of (2) shown in the above, the Mute state is released (30 ms Delay mode) by setting Mute pin (Pin 26) to High. Additionally, when the state enters from Mute OFF state to Mute ON state, it operates in 30 ms Delay Mode. If the Mute pin (Pin 26) stays to set High, and the Stby pin (Pin 22) is falling, the fast mute operation starts regardless of time constants. When this mode is used, both SDA (Pin28) and SCL (Pin29) pins should be pulled down.
Table 6.1 Each function setting in standalone control mode (Legacy Mode)
Function I2C bus control mode (Note) Standby control mode (Legacy Mode ) Changing Power amplifier mode / Line driver Operation mode Power amplifier mode mode with I2C bus. Output offset detection OFFSETDET Changing Fulltime / Part time with I2C bus Short to GND and VCC, output to output short, over- voltage, thermal shut down, rare short detection, and cross output connection Clip DET threshold Selectable threshold with I2C bus 2 % Thermal protection (TSM) Mute is ON with I2C bus setting value. Mute ON at Tj=160 °C Detection Low voltage BuDET pin is Low with I2C bus setting value. BuDET pin is Low at V threshold CC ≤ 8.5 V detection pin Hysteresis width BuDET pin is Low with I2C bus setting value. Low voltage detection ON <=> OFF = 0.3 V (ON<=>OFF) Headroom protection circuit operation (Refer to Low voltage mute Selectable ON (7.5 V) or OFF with I2C bus Section 6.11.1.) Mute is ON with I2C bus setting value. Mute mode (without time constants (10µs typ.) / Fast mute 30 ms Delay Mode / 15 ms / 30 ms) Selectable with the setting via I2C bus Gain adjustment 26 dB (26 dB / 16 dB) Note: For each setting in I2C Bus Control Mode, refer to Section 6.16.1. 7 2018-10-23
TCB702FNG
6.2.2. Standalone Control Mode (Legacy Mode)
This product also supports a standby and a mute control (hardware standby / mute) without using I2C bus communication. This product is set to the standalone mode by pulling down the ADSEL pin (Pin 27) at 10 kΩ or more, or open. (1) Standby state When the Stby pin (Pin 22) is set to 0.8 V or less, the IC enters to the standby state. At that time, the current which flows to the IC becomes 1 µA (typ.). (2) Standby OFF / Mute ON state When the voltage of 2.2 V or more is supplied to the Stby pin (Pin 22), the charging to the capacitor connected to the Ripple pin (Pin 13) starts. Then the hardware standby state is released and enters to the hardware mute state. (3) Standby / Mute Off <=> ON state After entering to the state of (2) shown in the above, the Mute state is released (30 ms Delay mode) by setting Mute pin (Pin 26) to High. Additionally, when the state enters from Mute OFF state to Mute ON state, it operates in 30 ms Delay Mode. If the Mute pin (Pin 26) stays to set High, and the Stby pin (Pin 22) is falling, the fast mute operation starts regardless of time constants. When this mode is used, both SDA (Pin28) and SCL (Pin29) pins should be pulled down.
Table 6.1 Each function setting in standalone control mode (Legacy Mode)
Function I2C bus control mode (Note) Standby control mode (Legacy Mode ) Changing Power amplifier mode / Line driver Operation mode Power amplifier mode mode with I2C bus. Output offset detection OFFSETDET Changing Fulltime / Part time with I2C bus Short to GND and VCC, output to output short, over- voltage, thermal shut down, rare short detection, and cross output connection Clip DET threshold Selectable threshold with I2C bus 2 % Thermal protection (TSM) Mute is ON with I2C bus setting value. Mute ON at Tj=160 °C Detection Low voltage BuDET pin is Low with I2C bus setting value. BuDET pin is Low at V threshold CC ≤ 8.5 V detection pin Hysteresis width BuDET pin is Low with I2C bus setting value. Low voltage detection ON <=> OFF = 0.3 V (ON<=>OFF) Headroom protection circuit operation (Refer to Low voltage mute Selectable ON (7.5 V) or OFF with I2C bus Section 6.11.1.) Mute is ON with I2C bus setting value. Mute mode (without time constants (10µs typ.) / Fast mute 30 ms Delay Mode / 15 ms / 30 ms) Selectable with the setting via I2C bus Gain adjustment 26 dB (26 dB / 16 dB) Note: For each setting in I2C Bus Control Mode, refer to Section 6.16.1. 7 2018-10-23