1 05 A5 TP TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 FOUR CHANNEL DIGITAL AUDIO LIP-SYNC DELAY WITH I2C CONTROL FEATURES APPLICATIONS • • • • • • • • • • • • • • • Digital Audio Format: 16-24-bit I2S, Right-Justified, Left-Justified I2C Bus Controlled Dual Serial Input Ports Delay Time: 85 ms/ch at fs = 48 kHz Delay Resolution: One Sample Delay Memory Cleared on Power-Up or After Delay Changes – Eliminates Erroneous Data on Output 3.3 V Operation With 5 V Tolerant I/O and I2C Control Supports Audio Bit Clock Rates of 32 to 64 fs with fs = 32 kHz–192 kHz No External Crystal or Oscillator Required – All Internal Clocks Generated From the Audio Clock Independent Clocks for Each Audio Input Surface Mount 4mm × 4mm, 16-pin QFN Package High Definition Lip-Sync Delay Flat Panel TV Lip-Sync Delay Home Theater Rear Channel Effects Wireless Speaker Front-Channel Synchronization DESCRIPTION The TPA5051 accepts two serial audio inputs, buffers the data for a selectable period of time, and outputs the delayed audio data on two serial outputs. One device allows delay of up to 85 ms/ch (fs = 48 kHz) to synchronize the audio stream to the video stream in systems with complex video processing algorithms. If more delay is needed, the devices can be connected in series. Independent clocks can be used for each audio input. SIMPLIFIED APPLICATION DIAGRAM Audio Processor SCLK LRCLK1 3.3 V TAS5504A + TAS5122 TPA5051 VDD BCLK1 Digital Amplfiier BCLK1 GND TAS3108 or ATSC Processor SCLK BCLK1 LRCLK1 LRCLK1 DATA1 DATA1 DATA_OUT1 DATA1 DATA2 DATA2 DATA_OUT2 DATA2 BCLK2 BCLK2 BCLK2 LRCLK2 LRCLK2 SDA SCL ADDx (2:0) LRCLK2 3 I2C Delay Control Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006, Texas Instruments Incorporated TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 PIN DESCRIPTIONS BCLK1 DATA_OUT1 GND VDD 16 15 14 13 RSA (QFN) PACKAGE (TOP VIEW) SCL 3 10 ADD0 SDA 4 9 DATA_OUT2 8 ADD1 BCLK2 11 7 2 LRCLK2 DATA1 6 ADD2 DATA2 12 5 1 GND LRCLK1 TERMINAL FUNCTIONS TERMINAL DESCRIPTION NO. ADD0 10 I I2C address select pin – LSB. 5V tolerant input. ADD1 11 I I2C address select pin. 5V tolerant input. ADD2 12 I I2C address select pin – MSB. 5V tolerant input. BCLK1 (1) 16 I Audio data bit clock input for serial input 1. 5V tolerant input. BCLK2 (1) 8 I Audio data bit clock input for serial input 2. 5V tolerant input. DATA1 2 I Audio serial data input for serial input 1. 5V tolerant input. DATA2 6 I Audio serial data input for serial input 2. 5V tolerant input. DATA_OUT1 15 O Delayed audio serial data output for channel 1. DATA_OUT2 9 O Delayed audio serial data output for channel 2. GND 5, 14 P Ground – All ground terminals must be tied to GND for proper operation LRCLK1 (1) 1 I Channel 1 left and right serial audio sampling rate clock (fs). 5V tolerant input. LRCLK2 (1) 7 I Channel 2 left and right serial audio sampling rate clock (fs). 5V tolerant input. SCL 3 I I2C communication bus clock input. 5V tolerant input. SDA 4 I/O I2C communication bus data input. 5V tolerant input. VDD 13 P Power supply interface. - Connect to ground. Must be soldered down in all applications to properly secure device on the PCB. Thermal Pad (1) 2 I/O NAME Left and right channels may use different BCLK frequencies as well as different LRCLK (fs) frequencies. Submit Documentation Feedback TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 FUNCTIONAL BLOCK DIAGRAM DATA1 DELAY MEMORY BCLK1 LRCLK1 DATA_OUT1 OUTPUT BUFFER INPUT BUFFER DATA2 DELAY MEMORY BCLK2 DATA_OUT2 LRCLK2 2 IC ADDx (2:0) 2 CONTROL 3 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature (unless otherwise noted) VDD Supply voltage VI Input voltage (1) DATA, LRCLK, BCLK, SCL, SDA, ADD[2:0] Continuous total power dissipation VALUE UNIT –0.3 to 3.6 V –0.3 to 5.5 V See Dissipation Rating Table TA Operating free-air temperature range –40 to 85 °C TJ Operating junction temperature range –40 to 125 °C Tstg Storage temperature range –65 to 125 °C 260 °C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operations of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. DISSIPATION RATINGS (1) (1) PACKAGE TA≤ 25°C POWER RATING DERATING FACTOR TA = 70°C POWER RATING TA = 85°C POWER RATING RSA 2.5 W 25 mW/°C 1.375 W 1.0 W This data was taken using 1 oz trace copper and copper pad that is soldered directly to a JEDEC standard high-k PCB. The thermal pad must be soldered to a thermal land on the printed-circuit board. See TI technical briefs SCBA01D and SLUA271 for more information about using the QFN thermal pad. RECOMMENDED OPERATING CONDITIONS MIN MAX VDD Supply voltage VDD 3 3.6 VIH High-level input voltage DATA1, DATA2, LRCLK1, LRCLK2, BCLK1, BCLK2, SCL, SDA, ADD[2:0] 2 VIL Low-level input voltage DATA1, DATA2, LRCLK1, LRCLK2, BCLK1, BCLK2, SCL, SDA, ADD[2:0] TA Operating free-air temperature –40 Submit Documentation Feedback UNIT V V 0.8 V 85 °C 3 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 DC CHARACTERISTICS TA = 25°C, VDD = 3 V (unless otherwise noted) PARAMETER TEST CONDITIONS IDD Supply current VDD = 3.3 V, fs = 48 kHz, BCLK = 32 × fs IOH High-level output current DATA_OUT1 = DATA_OUT2 = 2.6 V IOL Low-level output current DATA_OUT1 = DATA_OUT2 = 0.4 V High-level input current DATA1, DATA2, LRCLK1, LRCLK2, BCLK1, BCLK2, SCL, SDA, Vi = 5.5V, VDD = 3V IIH IIL Low-level input current MIN TYP MAX 1.8 3 UNIT mA 5 13 mA 5 13 mA 20 µA ADD[2:0], Vi = 3.6V, VDD = 3.6V 5 µA DATA1, DATA2, LRCLK1, LRCLK2, BCLK1, BCLK2, SCL, SDA, ADD[2:0], Vi = 0V, VDD = 3.6V 1 µA TIMING CHARACTERISTICS (1) (2) For I2C Interface Signals Over Recommended Operating Conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN UNIT 400 kHz tw(H) Pulse duration, SCL high 0.6 µs tw(L) Pulse duration, SCL low 1.3 µs tsu1 Setup time, SDA to SCL 100 ns th1 Hold time, SCL to SDA 10 ns t(buf) Bus free time between stop and start condition 1.3 µs tsu2 Setup time, SCL to start condition 0.6 µs th2 Hold time, start condition to SCL 0.6 µs tsu3 Setup time, SCL to stop condition 0.6 µs VPull-up = VDD A pull-up resistor ≤2 kΩ is required for a 5 V I2C bus voltage. tw(L) tw(H) SCL t su1 th1 SDA Figure 1. SCL and SDA Timing SCL th2 t(buf) tsu2 tsu3 Start Condition Stop Condition SDA Figure 2. Start and Stop Conditions Timing 4 MAX Frequency, SCL (1) (2) No wait states TYP fSCL Submit Documentation Feedback TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 Serial Audio Input Ports over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS fSCLKIN Frequency, BCLK 32 × fs, 48 × fs, 64 × fs MIN TYP 1.024 MAX UNIT 12.288 MHz tsu1 Setup time, LRCLK to BCLK rising edge 10 ns th1 Hold time, LRCLK from BCLK rising edge 10 ns tsu2 Setup time, DATA to BCLK rising edge 10 ns th2 Hold time, DATA from BCLK rising edge 10 ns LRCLK frequency 32 48 BCLK duty cycle 50% LRCLK duty cycle 50% BCLK rising edges between LRCLK rising edges LRCLK duty cycle = 50% 32 192 kHz 64 BCLK edges BCLK (Input) th1 tsu1 LRCLK (Input) th2 tsu2 DATA Figure 3. Serial Data Interface Timing APPLICATION INFORMATION AUDIO SERIAL INTERFACE The audio serial interface for the TPA5051 consists of two 3-wire synchronous serial ports. Each includes an LRCLK, BCLK, and DATA. BCLK is the serial audio bit clock, and it is used to clock the serial data present on the DATA line into the serial shift register of the audio interface. Serial data is clocked into the TPA5051 on the rising edge of BCLK. LRCLK is the serial audio left/right word clock, operated at the sampling frequency, fs. It is used to latch serial data into the internal registers of the serial audio interface. BCLK can be operated at 32 to 64 times the sampling frequency for right-justified, left-justified, and I2S formats. Generally, both LRCLK and BCLK should be synchronous to the system clock. However, the TPA5051 does not have a system clock, so the only synchonization necessary is between BCLK and LRCLK. AUDIO DATA FORMATS AND TIMING The TPA5051 supports industry-standard audio data formats, including right-justified, I2S, and left-justified. The data formats are shown in Figure 4. Data formats are selected using the I2C interface and register map (see Table 1). Submit Documentation Feedback 5 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 APPLICATION INFORMATION (continued) (1) Right-Justified Data Format; L-Channel = HIGH, R-Channel = LOW 1/fS L-Channel LRCK R-Channel BCK (= 32 fS, 48 fS, or 64 fS) 16-Bit Right-Justified, BCK = 48 f S or 64 fS DATA 14 15 16 1 2 3 14 15 16 MSB 1 LSB 2 3 14 15 16 MSB LSB 16-Bit Right-Justified, BCK = 32 f S DATA 14 15 16 1 2 3 14 15 16 MSB 1 2 LSB 3 14 15 16 MSB LSB 18-Bit Right-Justified, BCK = 48 f S or 64 fS DATA 16 17 18 1 2 3 16 17 18 MSB 1 LSB 2 3 16 17 18 MSB LSB 20-Bit Right-Justified, BCK = 48 f S or 64 fS DATA 18 19 20 1 2 3 18 19 20 MSB 1 LSB 2 3 18 19 20 MSB LSB 24-Bit Right-Justified, BCK = 48 f S or 64 fS DATA 22 23 24 1 2 3 22 23 24 MSB 1 2 LSB 3 22 23 24 MSB LSB (2) I2S Data Format; L-Channel = LOW, R-Channel = HIGH 1/fS LRCK L-Channel R-Channel BCK (= 32 fS, 48 fS, or 64 fS) DATA 1 2 3 N–2 N–1 MSB N 1 2 LSB 3 N–2 N–1 MSB LSB 1 N 2 (3) Left-Justified Data Format; L-Channel = HIGH, R-Channel = LOW 1/fS LRCK L-Channel R-Channel BCK (= 32 fS, 48 fS, or 64 fS) DATA 1 2 3 MSB N–2 N–1 N 1 LSB 2 MSB Figure 4. Audio Data Formats 6 Submit Documentation Feedback 3 N–2 N–1 LSB N 1 2 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 APPLICATION INFORMATION (continued) 2 GENERAL I C OPERATION The I2C bus employs two signals; SDA (data) and SCL (clock), to communicate between integrated circuits in a system. Data is transferred on the bus serially, one bit at a time. The address and data are transferred in byte (8-bit) format with the most-significant bit (MSB) transferred first. In addition, each byte transferred on the bus is acknowledged by the receiving device with an acknowledge bit. Each transfer operation begins with the master device driving a start condition on the bus and ends with the master device driving a stop condition on the bus. The bus uses transitions on the data terminal (SDA) while the clock is high to indicate start and stop conditions. A high-to-low transition on SDA indicates a start and a low-to-high transition indicates a stop. Normal data-bit transitions must occur within the low time of the clock period. These conditions are shown in Figure 5. The master generates the 7-bit slave address and the read/write (R/W) bit to open communication with another device and then wait for an acknowledge condition. The TPA5051 holds SDA low during acknowledge clock period to indicate an acknowledgement. When this occurs, the master transmits the next byte of the sequence. Each device is addressed by a unique 7-bit slave address plus R/W bit (1 byte). All compatible devices share the same signals via a bidirectional bus using a wired-AND connection. An external pull-up resistor must be used for the SDA and SCL signals to set the HIGH level for the bus. When the bus level is 5 V, pull-up resistors between 1 kΩ and 2 kΩ in value must be used. For a bus level of 3.3 V, higher resistor values, such as 10 kΩ, may be used. 8- Bit Data for Register (N) 8- Bit Data for Register (N+1) Figure 5. Typical I2C Sequence There is no limit on the number of bytes that can be transmitted between start and stop conditions. When the last word transfers, the master generates a stop condition to release the bus. A generic data transfer sequence is shown in Figure 5. The 7-bit address for the TPA5051 is selectable using the 3 address pins (ADD0, ADD1, ADD2). Table 1 lists the 8 possible slave addresses. Table 1. I2C Slave Address SELECTABLE ADDRESS BITS FIXED ADDRESS (4 MSB bits) ADD2 ADD1 ADD0 1101 0 0 0 1101 0 0 1 1101 0 1 0 1101 0 1 1 1101 1 0 0 1101 1 0 1 1101 1 1 0 1101 1 1 1 SINGLE-AND MULTIPLE-BYTE TRANSFERS The serial control interface supports both single-byte and multi-byte read/write operations for all registers. During multiple-byte read operations, the TPA5051 responds with data, a byte at a time, starting at the register assigned, as long as the master device continues to respond with acknowledges. Submit Documentation Feedback 7 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 The TPA5051 supports sequential I2C addressing. For write transactions, if a register is issued followed by data for that register and all the remaining registers that follow, a sequential I2C write transaction has taken place. For I2C sequential write transactions, the register issued then serves as the starting point, and the amount of data subsequently transmitted, before a stop or start is transmitted, determines to how many registers are written. SINGLE-BYTE WRITE As shown is Figure 6, a single-byte data write transfer begins with the master device transmitting a start condition followed by the I2C device address and the read/write bit. The read/write bit determines the direction of the data transfer. For a write data transfer, the read/write bit must be set to 0. After receiving the correct I2C device address and the read/write bit, the TPA5051 responds with an acknowledge bit. Next, the master transmits the register byte corresponding to the TPA5051 internal memory address being accessed. After receiving the register byte, the TPA5051 again responds with an acknowledge bit. Next, the master device transmits the data byte to be written to the memory address being accessed. After receiving the data byte, the TPA5051 again responds with an acknowledge bit. Finally, the master device transmits a stop condition to complete the single-byte data write transfer. Start Condition Acknowledge A6 A5 A4 A3 A2 A1 A0 Acknowledge R/W ACK A7 A6 I2C Device Address and Read/Write Bit A5 A4 A3 A2 A1 A0 ACK D7 Acknowledge D6 D5 Register D4 D3 Data Byte D2 D1 D0 ACK Stop Condition Figure 6. Single-Byte Write Transfer MULTIPLE-BYTE WRITE AND INCREMENTAL MULTIPLE-BYTE WRITE A multiple-byte data write transfer is identical to a single-byte data write transfer except that multiple data bytes are transmitted by the master device to the TPA5051 as shown in Figure 7. After receiving each data byte, the TPA5051 responds with an acknowledge bit. Register Figure 7. Multiple-Byte Write Transfer SINGLE-BYTE READ As shown in Figure 8, a single-byte data read transfer begins with the master device transmitting a start condition followed by the I2C device address and the read/write bit. For the data read transfer, both a write followed by a read are actually done. Initially, a write is done to transfer the address byte of the internal memory address to be read. As a result, the read/write bit is set to a 0. After receiving the TPA5051 address and the read/write bit, the TPA5051 responds with an acknowledge bit. The master then sends the internal memory address byte, after which the TPA5051 issues an acknowledge bit. The master device transmits another start condition followed by the TPA5051 address and the read/write bit again. This time the read/write bit is set to 1, indicating a read transfer. Next, the TPA5051 transmits the data byte from the memory address being read. After receiving the data byte, the master device transmits a not-acknowledge followed by a stop condition to complete the single-byte data read transfer. 8 Submit Documentation Feedback TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 Repeat Start Condition Start Condition Acknowledge A6 A5 A1 A0 R/W ACK A7 I2C Device Address and Read/Write Bit Acknowledge A6 A5 A4 A0 ACK Not Acknowledge Acknowledge A6 A5 A1 A0 R/W ACK D7 D6 I2C Device Address and Read/Write Bit Register D1 D0 ACK Stop Condition Data Byte Figure 8. Single-Byte Read Transfer MULTIPLE-BYTE READ A multiple-byte data read transfer is identical to a single-byte data read transfer except that multiple data bytes are transmitted by the TPA5051 to the master device as shown in Figure 9. With the exception of the last data byte, the master device responds with an acknowledge bit after receiving each data byte. Repeat Start Condition Start Condition Acknowledge A6 A0 R/W ACK A7 I2C Device Address and Read/Write Bit Acknowledge A6 A5 Acknowledge A0 ACK A6 A0 R/W ACK D7 I2C Device Address and Read/Write Bit Register Acknowledge D0 ACK D7 First Data Byte Acknowledge Not Acknowledge D0 ACK D7 D0 ACK Other Data Bytes Last Data Byte Stop Condition Figure 9. Multiple-Byte Read Transfer TPA5051 Operation The following sections describe the registers configurable via I2C commands for the TPA5051. Only a single decoupling capacitor (0.1 µF–1 µF) is required across VDD and GND. The ADDx terminals can be directly connected to VDD or GND. Table 1 describes the I2C addresses selectable via the ADDx terminals. A schematic implementation of the TPA5051 is shown in Figure 10. 3.3 V 0.1 mF VDD Digital Audio1 Word Clock1 DATA_OUT1 Delayed Audio1 DATA_OUT2 Delayed Audio2 2 DATA1 SDA I C Data LRCLK1 SCL I C Clock Bit Clock1 BCLK1 ADD0 Digital Audio2 DATA2 ADD1 LRCLK2 ADD2 2 2 Word Clock2 Bit Clock2 BCLK2 I C Address Select GND GND Figure 10. TPA5051 Schematic Submit Documentation Feedback 9 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 SERIAL CONTROL INTERFACE REGISTER SUMMARY Table 2. Serial Control Register Summary REGISTER REGISTER NAME NO. OF BYTES CONTENTS INITIALIZATION VALUE 0x01 (1) Control Register 1 Description shown in subsequent section 00 0x02 (1) Right Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x03 (1) Right Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x04 (1) Left Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x05 (1) Left Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x06 (1) Frame Delay 1 Description shown in subsequent section 00 0x07 (1) RJ Packet Length 1 Description shown in subsequent section 00 0x08 (1) Complete Update 1 Description shown in subsequent section 00 0x09 (2) Control Register 1 Description shown in subsequent section 00 0x0A (2) Right Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x0B (2) Right Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x0C (2) Left Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x0D (2) Left Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x0E (2) Frame Delay 1 Description shown in subsequent section 00 0x0F (2) RJ Packet Length 1 Description shown in subsequent section 00 0x10 (2) Complete Update 1 Description shown in subsequent section 00 I2C registers for serial data channel 1 I2C registers for serial data channel 2 (1) (2) CONTROL REGISTER (0x01, 0x09) The control register allows the user to mute a specific audio channel. It is also used to specify the data type (I2S, Right-Justified, or Left-Justified). Table 3. Control Registers (0x01, 0x09) (1) D7 D6 D5 D4 D3 D2 D1 D0 0 0 X X X X – – Left and Right channel are active. 0 1 X X X X – – Left channel is MUTED. 1 0 X X X X – – Right channel is MUTED. 1 1 X X X X – – Left and Right channel are MUTED. – – X X X X 0 0 I2S data format – – X X X X 0 1 Right-justified data format (see PACKET LENGTH register 0x07) – – X X X X 1 0 Left-justified data format – – X X X X 1 1 Bypass mode – data is passed straight through without delay. (1) FUNCTION Default values are in bold. AUDIO DELAY REGISTERS (0x02–0x05, 0x0A–0x0D) The audio delay for the left and right channels is fixed by writing a total of 13 bits (2 byte transfer) to upper and lower registers as specified in Table 1. A multiple byte transfer should be performed starting with the control register and following with 4 bytes to fill the upper and lower registers associated with right/left channel delay. The decimal value of D0–D13 equals the number of samples to delay. The maximum number of delayed samples per channel is 4095 for the TPA5051. This equates to 85.3 ms ([4095 × (1/Fs)] at 48 kHz) of delay per channel. 10 Submit Documentation Feedback TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 Table 4. Audio Delay Registers (0x02–0x05, 0x0A–0x0D) (1) D13 D12 D11–D2 D1 D0 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) FUNCTION Default values are in bold. FRAME DELAY REGISTERS (0x06, 0x0E) 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. (1) 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 Default values are in bold. RJ PACKET LENGTH REGISTERS (0x07, 0x0F) 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) (1) D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 Packet length = 0 bits FUNCTION 0 0 0 0 0 1 Packet length = 1 bits 0 1 1 X X X Packet length = 24 bits Default values are in bold. Submit Documentation Feedback 11 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 COMPLETE UPDATE REGISTER (0x08, 0x10) Since the audio delay values are divided among several registers, it is likely that multiple writes would be necessary to configure the device. This may cause interruptions in the audio stream and unwanted pops and clicks might occur as register data is passed to delay functional block. To avoid this from happening, the Complete Update register is used to transfer the user settings from the register file to the delay functional block when a 1 is written to the LSB. For example, if the right delay is set to 35 samples, and the left delay is set to 300 samples, the device holds the right channel in MUTE until 35 samples of audio data have passed, and holds the left channel in MUTE until 300 samples of audio data have passed. The Complete Update register must also be used when either the stream type is changed or the RJ packet length is changed. If a complete update command is not issued, the changes will not take effect. Note that the individual channels can be muted using the upper bits of the Control Registers without writing to the Complete Update registers. Table 7. Complete Update Registers (0x08, 0x10) (1) D7–D1 (1) D0 FUNCTION X 0 No data from the register settings is passed to the delay block. X 1 Stream type, right/left delay or frame delay, and packet length is passed to the delay functional block. Default values are in bold. APPLICATION EXAMPLES Connecting Two Devices in Series to Increase the Delay It is sometimes desirable to increase the delay time beyond which one device can provide. In such cases, several TPA5051 devices can be placed in series to increase the delay. A maximum of eight devices can be placed in series. This is because each device has eight I2 address settings. Under no circumstances should two TPA5051 devices share the same I2S address. See Figure 11. 0.1 mF LRCLK1 LRCLK1 LRCLK1 DATA1 DATA1 DATA2 DATA2 BCLK2 DATA_OUT1 DATA1 DATA_OUT2 DATA2 BCLK2 LRCLK2 LRCLK2 DATA_OUT1 DATA_OUT2 DATA1 DATA2 BCLK2 LRCLK2 LRCLK2 BCLK2 Submit Documentation Feedback ADD0 SCL ADD1 SDA ADD2 ADD0 SCL ADD1 SDA SCL SCLK Figure 11. Two Devices Connected in Series 12 BCLK1 LRCLK1 2 kW SDA ADD2 2 kW BCLK1 Audio Amplifier GND BCLK1 VDD VDD BCLK1 GND 0.1 mF Audio Processor SCLK TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 2 I C Examples The following are some examples of I2C commands used to read or write to the TPA5051. For all conditions, assume the address of the TPA5051 is set to 001. Single Byte Write In this example, the TPA5051 is set to mute both left and right channels of DATA1, and to operate in I2S mode. Start D2 ACK TPA5051 Address and Write 01 ACK C0 Register Address ACK Stop Data NOTE: Because no complete update command was issued in this example, the stream type change will not take effect until a 1 is written to the Complete Update register. Multiple Byte Write In this example, the TPA5051 is set to make both the left and right channels of both DATA1 and DATA2 active. DATA1 is set to operate in I2S mode, delay the right channel by 1024 samples, and delay the left channel by 2048 samples. DATA2 is set to operate in the Right-Justified mode with a packet length of 16 bits. It is to delay the audio signal by 40 ms using the Frame Delay function. Assume the audio sample rate (fs) = 48 kHz, and the Frame rate = 50 Hz. This is a sequential write, so all registers must have data written to them. Start D2 ACK TPA5051 Address and Write 08 Register Address (Control Register DATA1) ACK Data (Control Register DATA2) 91 Data (Frame Delay DATA2) ACK ACK 00 ACK 00 ACK 10 Data (RJ Packet = 16 Bits DATA2) 00 04 ACK 00 ACK 00 ACK Data (RJ Packet = 0 Bits DATA1) ACK Data (Right Delay Lower Bits DATA2) 01 ACK Data (Right Delay Upper Bits DATA1) Data (Frame Delay DATA1) Data (Right Delay Upper Bits DATA2) ACK 00 Data (Control Register DATA1) Data (Left Delay Lower Bits DATA1) Data (Left Delay Upper Bits DATA1) 10 ACK 01 ACK 00 00 ACK Data (Right Delay Lower Bits DATA1) 01 ACK Data (Complete Update DATA1) ACK Data (Left Delay Upper Bits DATA2) 00 ACK Data (Left Delay Lower Bits DATA2) Stop Data (Complete Update DATA2) Submit Documentation Feedback 13 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 Combination of Single Byte Writes In this example, DATA1 set to operate in the I2S mode, and DATA2 is set to mute. Start D2 ACK TPA5051 Address and Write Start D2 01 09 00 ACK Register Address (Control Register DATA2) ACK Stop Data (Control Register DATA1) Register Address (Control Register DATA1) ACK TPA5051 Address and Write ACK C0 ACK Stop Data (Control Register DATA2) Note that in every circumstance where a delay or stream type is written into the memory of the TPA5051, a 1 must be written to the Complete Update registers for the change to take effect. In this example, the stream type change made to DATA1 would not take effect. This does not apply to muting, which occurs in the Control registers. Single Byte Read In this example, one byte of data is read from the Control Register (0x01). After the data (represented xx) by is read by the master device, the master device issues a Not Acknowledge, before stopping the communication. Start D2 TPA5051 Address and Write 14 ACK 01 Register Address (Control Register DATA1) ACK Start D3 ACK TPA5051 Address and Read Submit Documentation Feedback XX Data Read (Control Register DATA1) No ACK Stop TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 Multiple Byte Read Often, when it is necessary to read what is contained in one register, it is necessary to determine what information is contained in all registers. In such a case, a sequential read should be used. In situations where data must be read from a register at the beginning (0x01), and a register towards the end (0x0E), a sequential read is likely to be faster to implement than multiple single byte reads. In this example, a sequential read is initiated with the Control Register (0x01), and ends with the Frame Delay Register (0x0E). Start D2 ACK TPA5051 Address and Write XX ACK 01 Start Register Address (Control Register DATA1) ACK Data Read (Right Delay Upper Bits DATA1) XX Data Read (RJ Packet Length DATA1) XX Data Read (Left Delay Upper Bits DATA2) TPA5051 Address and Read ACK XX Data Read (Right Delay Lower Bits DATA1) ACK ACK XX ACK XX Data Read (Left Delay Lower Bits DATA2) XX XX XX Data Read (Control Register DATA1) ACK XX ACK Data Read (Right Delay Upper Bits DATA2) NO ACK XX ACK Data Read (Frame Delay DATA1) Data Read (Left Delay Lower Bits DATA1) ACK ACK XX XX ACK Data Read (Left Delay Upper Bits DATA1) Data Read (Control Register DATA2) Data Read (Complete Update DATA1) ACK ACK D3 XX ACK Data Read (Right Delay Lower Bits DATA2) Stop Data Read (Frame Delay DATA2) Submit Documentation Feedback 15 TPA5051 www.ti.com SLOS497A – JUNE 2006 – REVISED JULY 2006 DEVICE CURRENT CONSUMPTION The TPA5051 draws different amounts of supply current depending upon the conditions under which it is operated. As VDD increases, so too does IDD. Likewise, as VDD decreases, IDD decreases. The same is true of the sampling frequency, fs. An increase in fs causes an increase in IDD. Figure 12 illustrates the relationship between operating condition and typical supply current. SUPPLY CURRENT vs SAMPLING FREQUENCY 5 IDD - Supply Current - mA 4.5 BCLK = 64 fs Data = 24 bit VDD = 3.6 V 4 3.5 3 2.5 VDD = 3.3 V 2 VDD = 3 V 1.5 1 0.5 0 32 52 72 92 112 132 152 172 fs - Sampling Frequency - kHz Figure 12. Typical Supply Current 16 Submit Documentation Feedback 192 PACKAGE OPTION ADDENDUM www.ti.com 6-Dec-2006 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty TPA5051RSAR ACTIVE QFN RSA 16 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPA5051RSARG4 ACTIVE QFN RSA 16 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPA5051RSAT ACTIVE QFN RSA 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPA5051RSATG4 ACTIVE QFN RSA 16 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Lead/Ball Finish MSL Peak Temp (3) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. 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