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TPA5051 データシート(PDF) 11 Page - Texas Instruments |
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TPA5051 データシート(HTML) 11 Page - Texas Instruments |
11 / 19 page www.ti.com FRAME DELAY REGISTERS (0x06, 0x0E) RJ PACKET LENGTH REGISTERS (0x07, 0x0F) TPA5051 SLOS497A – JUNE 2006 – REVISED JULY 2006 Table 4. Audio Delay Registers (0x02–0x05, 0x0A–0x0D)(1) D13 D12 D11–D2 D1 D0 FUNCTION 0 0 0 0 0 Left and Right audio is passed to output with no delay. 0 0 0 0 1 Left and Right audio is delayed by 1 sample (1/Fs = delay time) 1 1 1 1 1 Left and Right audio is delayed by 4095 samples (4095/Fs = delay time) (1) Default values are in bold. This register can be used to specify delay in video frames instead of audio samples. When the MSB is set to 1, the audio delay registers (0x01–0x04) are bypassed and the Frame Delay Register is used to set the delay based on the frame rate (D6), audio sample rate (D5–D3), and number of frames to delay (D2–D0). The total audio delay time is calculated by the following formula: Audio Delay (in samples) = int [# Delay Frames × (1/Frame Rate) × Audio Sample Rate] If the result of the formula above is greater than the maximum number of delay samples (4095 for TPA5051), then the value is limited to this maximum before passing to the delay block. Table 5. Frame Delay Registers (0x06, 0x0E)(1) D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION 0 Settings in this register are masked and audio delay is determined by settings in the right/left audio delay registers. 1 Right/left audio delay registers are masked and delay is determined by settings in this register. 0 Frame rate = 50 Hz 1 Frame rate = 59.94 Hz 0 0 0 Audio sample rate = 32 kHz 0 0 1 Audio sample rate = 44.1 kHz 0 1 0 Audio sample rate = 48 kHz 0 1 1 Audio sample rate = 88.2 kHz 1 0 0 Audio sample rate = 96 kHz 1 0 1 Audio sample rate = 176.4 kHz 1 1 0 Audio sample rate = 192 kHz 1 1 1 Audio sample rate = 192 kHz 0 0 0 Delay frames = 1 0 0 1 Delay frames = 2 1 1 1 Delay frames = 8 (1) Default values are in bold. This register is only used in right justified mode. The decimal value of bits [5:0] represents the width of the useable data in a right justified audio stream. The number of BCLK transitions between LRCLK transitions must be greater than or equal to the packet length selected in this register. The maximum packet length value is 24 bits. Any setting greater whose numerical value is greater than 24 bits is limited to the maximum 24 bits. Table 6. RJ Package Length (0x07, 0x0F)(1) D5 D4 D3 D2 D1 D0 FUNCTION 0 0 0 0 0 0 Packet length = 0 bits 0 0 0 0 0 1 Packet length = 1 bits 0 1 1 X X X Packet length = 24 bits (1) Default values are in bold. 11 Submit Documentation Feedback |
同様の部品番号 - TPA5051 |
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同様の説明 - TPA5051 |
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