TPA5050RSAT

0 05 A5 TP TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 STEREO DIGITAL AUDIO LIP-SYNC DELAY WITH I2C CONTROL FEATURES APPLICATIONS • • • • • • • • • • • • • • Digital Audio Formats: 16-24-bit I2S, Right-Justified, Left-Justified I2C Bus Controlled Single Serial Input Port Delay Time: 170 ms/ch at fs = 48 kHz Delay Resolution: One Sample Delay Memory Cleared on Power-Up or After Delay Changes – Eliminates Erroneous Data From Being 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 Surface Mount 4mm × 4mm, 16-pin QFN Package High Definition TV Lip-Sync Delay Flat Panel TV Lip-Sync Delay Home Theater Rear-Channel Effects Wireless Speaker Front-Channel Synchronization DESCRIPTION The TPA5050 accepts a single serial audio input, buffers the data for a selectable period of time, and outputs the delayed audio data on a single serial output. One device allows delay of up to 170 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. SIMPLIFIED APPLICATION DIAGRAM Audio Processor Digital Amplifier SCLK TAS3103A or ATSC Processor 3.3 V TAS5504A +TAS5122 LRCLK BCLK LRCLK DATA DATA_OUT SCLK BCLK LRCLK DATA SDA SCL ADDx (2:0) DATA VDD BCLK GND TPA5050 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 © 2006–2007, Texas Instruments Incorporated TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 PIN DESCRIPTIONS BCLK DATA_OUT GND VDD 16 15 14 13 RSA (QFN) PACKAGE (TOP VIEW) SCL 3 10 ADD0 SDA 4 9 GND 8 ADD1 GND 11 7 2 GND DATA 6 ADD2 GND 12 5 1 GND LRCLK TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. ADD0 10 I I2C address select pin – LSB ADD1 11 I I2C address select pin ADD2 12 I I2C address select pin – MSB BCLK 16 I Audio data bit clock input for serial input. 5V tolerant input. DATA 2 I Audio serial data input for serial input. 5V tolerant input. DATA_OUT 15 O Delayed audio serial data output. 5–9, 14 P Ground – All ground terminals must be tied to GND for proper operation LRCLK 1 I 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. GND Thermal Pad FUNCTIONAL BLOCK DIAGRAM DATA BCLK INPUT BUFFER DELAY MEMORY LRCLK 2 IC ADDx (2:0) 2 2 CONTROL 3 Submit Documentation Feedback OUTPUT BUFFER DATA_OUT TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 ABSOLUTE MAXIMUM RATINGS over operating free-air temperature (unless otherwise noted) VDD VI (1) Supply voltage Input voltage DATA, LRCLK, BCLK, SCL, SDA ADD[2:0] VALUE UNIT –0.3 to 3.6 V –0.3 to 5.5 V –0.3 to VDD+0.3 Continuous total power dissipation 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 25mW/°C 1.375 W 1.0 W This data was taken using 1 oz trace 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 SCBA017D and SLUA271 for more information about using the QFN thermal pad. RECOMMENDED OPERATING CONDITIONS MIN MAX 3.6 VDD Supply voltage VDD 3 VIH High-level input voltage DATA, LRCLK, BCLK, SCL, SDA, ADD[2:0] 2 VIL Low-level input voltage DATA, LRCLK, BCLK, SCL, SDA, ADD[2:0] TA Operating free-air temperature –40 Submit Documentation Feedback UNIT V V 0.8 V 85 °C 3 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 DC CHARACTERISTICS TA = 25°C, VDD = 3 V (unless otherwise noted) PARAMETER TEST CONDITIONS IDD Supply current IOH High-level output current DATA_OUT = 2.6 V IOL Low-level output current MIN TYP MAX 1.5 3 mA 7 13 mA 7 13 mA VDD = 3.3 V, fs = 48 kHz, BCLK = 32 fs IIH High-level input current IIL Low-level input current DATA_OUT = 0.4 V DATA, LRCLK, BCLK, SCL, SDA, Vi = 5.5V, VDD = 3V 20 ADD[2:0], Vi = 3.6V, VDD = 3.6V 5 DATA, LRCLK, BCLK, SCL, SDA, ADD[2:0], Vi = 0V, VDD = 3.6V 1 UNIT µA µA TIMING CHARACTERISTICS (1) (2) For I2C Interface Signals Over Recommended Operating Conditions (unless otherwise noted) PARAMETER fSCL Frequency, SCL tw(H) Pulse duration, SCL high tw(L) tsu1 TEST CONDITIONS MIN No wait states MAX UNIT 400 kHz 0.6 µs Pulse duration, SCL low 1.3 µs 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 (1) (2) 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 TYP Submit Documentation Feedback TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 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 TPA5050 consists of a 3-wire synchronous serial port. It includes LRCLK, BCLK, and DATA. BCLK is the serial audio bit clock, and it is used to clock the serial data present on DATA into the serial shift register of the audio interface. Serial data is clocked into the TPA5050 on the rising edge of BCLK. LRCLK is the serial audio left/right word clock. It is used to latch serial data into the internal registers of the serial audio interface. LRCLK is operated at the sampling frequency, fs. BCLK can be operated at 32 to 64 times the sampling frequency for right-justified, left-justified, and I2S formats. A system clock is not necessary for the operation of the TPA5050. AUDIO DATA FORMATS AND TIMING The TPA5050 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 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 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 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 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 TPA5050 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. 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 TPA5050 is selectable using the 3 address pins (ADD2, ADD1, ADD0). 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 TPA5050 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 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 The TPA5050 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 TPA5050 responds with an acknowledge bit. Next, the master transmits the register byte corresponding to the TPA5050 internal memory address being accessed. After receiving the register byte, the TPA5050 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 TPA5050 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 TPA5050 as shown in Figure 7. After receiving each data byte, the TPA5050 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 TPA5050 address and the read/write bit, the TPA5050 responds with an acknowledge bit. The master then sends the internal memory address byte, after which the TPA5050 issues an acknowledge bit. The master device transmits another start condition followed by the TPA5050 address and the read/write bit again. This time the read/write bit is set to 1, indicating a read transfer. Next, the TPA5050 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 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 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 TPA5050 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 Acknowledge A6 I2C Device Address and Read/Write Bit 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 TPA5050 Operation The following sections describe the registers configurable via I2C commands for the TPA5050. 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 TPA5050 is shown in Figure 10. 3.3 V 0.1 mF VDD Digital Audio Word Clock Bit Clock Delayed Audio DATA_OUT 2 DATA SDA I C Data LRCLK SCL I C Clock BCLK ADD0 GND ADD1 2 2 I C Address Select ADD2 GND Figure 10. TPA5050 Schematic Submit Documentation Feedback 9 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 SERIAL CONTROL INTERFACE REGISTER SUMMARY Table 2. Serial Control Register Summary REGISTER REGISTER NAME NO. OF BYTES CONTENTS INITIALIZATION VALUE 0x01 Control Register 1 Description shown in subsequent section 00 0x02 Right Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x03 Right Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x04 Left Delay Upper (5 bits) 1 Description shown in subsequent section 00 0x05 Left Delay Lower (8 bits) 1 Description shown in subsequent section 00 0x06 Frame Delay 1 Description shown in subsequent section 00 0x07 RJ Packet Length 1 Description shown in subsequent section 00 0x08 Complete Update 1 Description shown in subsequent section 00 CONTROL REGISTER (0x01) 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) (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) 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–D12 equals the number of samples to delay. The maximum number of delayed samples is 8191 for the TPA5050. This equates to 170.65 ms [8191 × (1/fs)] at 48 kHz. Table 4. Audio Delay Registers (0x02–0x05) (1) (1) D12 D11 D10–D2 D1 D0 0 0 0 0 0 Left and Right audio is passed to output with no delay. FUNCTION 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 8191 samples (8191/fs = delay time) Default values are in bold. FRAME DELAY REGISTERS (0x06) 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] 10 Submit Documentation Feedback TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 If the result of the formula above is greater than the maximum number of delay samples (8191 for TPA5050), then the value is limited to this maximum before passing to the delay block. Table 5. Frame Delay Registers (0x06) (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) 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) (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. COMPLETE UPDATE REGISTER (0x08) 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. Note that the individual channels can be muted using the upper bits of the Control Registers without writing to the Complete Update registers. Submit Documentation Feedback 11 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 Table 7. Complete Update Registers (0x08) (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 The following are some examples of I2C commands used to read or write to the TPA5050. For all conditions, assume the address of the TPA5050 is set to 001. Single Byte Write In this example, the TPA5050 is set to mute both left and right channels, and to operate in I2S mode. Start D2 ACK TPA5050 Address and Write 01 ACK C0 Register Address ACK Stop Data Multiple Byte Write In this example, the TPA5050 is set to make both the left and right channels active, operate in I2S mode, delay the right channel by 4095 samples, and delay the left channel by 4096 samples. This is a sequential write, so all registers must have data written to them. Start ACK D2 TPA5050 Address and Write Register Address (Control Register) ACK 10 ACK 01 Data (Left Delay Upper Bits) Data (Control Register) ACK 00 Data (Left Delay Lower Bits) 0F ACK 00 Data (Right Delay Upper Bits) 00 ACK 00 Data (Frame Delay) FF ACK ACK Data (Right Delay Lower Bits) 01 ACK Data (RJ Packet = 0Bits) ACK Data (Complete Update) Stop Combination Single Byte Write and Sequential Write In this example, the TPA5050 is set to operate in the Right Justified mode, with a packet length of 16 bits. The device 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 combination of single writes and a sequential write. Since the Right Justified mode is set in the Control Register, and the Frame Delay is set in register 0x06, the data in registers 0x02–0x05 can be ignored. Start D2 ACK TPA5050 Address and Write Start D2 TPA5050 Address and Write 01 ACK Register Address (Control Register) ACK 06 Register Address (Frame Delay) 01 ACK Stop ACK 10 Data (Control Register) ACK 91 Data (Frame Delay) Data (RJ Packet = 16 Bits) ACK 01 ACK Stop Data (Complete Update) Note that in every circumstance where a delay was written into the memory of the TPA5050, a 1 must be written to the Complete Data register for the change to take effect. This does not apply to muting, which occurs in the Control register. 12 Submit Documentation Feedback TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 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 ACK TPA5050 Address and Write 01 ACK D3 Start Register Address (Control Register) ACK No ACK XX Stop Data Read (Control Register) TPA5050 Address and Read 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 (0x07), 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 Complete Update Register (0x08). Start D2 ACK TPA5050 Address and Write XX ACK ACK XX Data Read (Left Delay Upper) No ACK D3 Start Register Address (Control Register) Data Read (Right Delay Lower) XX 01 ACK TPA5050 Address and Read ACK XX Data Read (Left Delay Lower) ACK ACK XX Data Read (Frame Delay) ACK ACK Data Read (Right Delay Upper) Data Read (Control Register) XX XX XX ACK Data Read (RJ Packet Length) Stop Data Read (Complete Update) Submit Documentation Feedback 13 TPA5050 www.ti.com SLOS492B – MAY 2006 – REVISED MAY 2007 DEVICE CURRENT CONSUMPTION The TPA5050 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 11 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 11. Typical Supply Current 14 Submit Documentation Feedback 192 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) TPA5050RSAR ACTIVE QFN RSA 16 3000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 TPA 5050 TPA5050RSAT ACTIVE QFN RSA 16 250 RoHS & Green NIPDAU Level-2-260C-1 YEAR -40 to 85 TPA 5050 (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) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of