CS5330A-BSZR

CS5330A/31A 8-Pin, Stereo A/D Converter for Digital Audio Features General Description  Single +5 V Power Supply The CS5330A/31A is a complete stereo analog-to-digital converter that performs antialias filtering, sampling and analog-to-digital conversion generating 18-bit values for both left and right inputs in serial form. The output sample rate can be infinitely adjusted between 2 kHz and 50 kHz.  18-Bit Resolution  94 dB Dynamic Range  Linear Phase Digital Anti-Alias Filtering – – 0.05 dB Passband Ripple 80 dB Stopband Rejection The CS5330A/31A operates from a single +5 V supply and requires only 150 mW for normal operation, making it ideal for battery-powered applications.  Low Power Dissipation: 150 mW – Power-Down Mode for Portable Applications  Complete CMOS Stereo A/D System – – – Delta-Sigma A/D Converters Digital Anti-Alias Filtering S/H Circuitry and Voltage Reference  Adjustable System Sampling Rates including 32, 44.1, and 48 kHz The ADC uses delta-sigma modulation with 128X oversampling, followed by digital filtering and decimation, which removes the need for an external anti-alias filter. The linear-phase digital filter has a passband to 21.7 kHz, 0.05 dB passband ripple and >80 dB stopband rejection. The device also contains a high-pass filter to remove DC offsets. The device is available in an 8-pin SOIC package in both Commercial (-10° to +70° C) and Automotive grades (-40° to +85° C). Please refer to “Ordering Information” on page 16 for complete details. MCLK SCLK LRCK 2 3 4 Voltage Reference Serial Output Interface AINL 8 LP Filter S/H Digital Decimation Filter High Pass Filter Digital Decimation Filter High Pass Filter Comparator 1 SDATA DAC AINR 5 AGND 6 LP Filter S/H Comparator DAC 7 VA+ http://www.cirrus.com Copyright  Cirrus Logic, Inc. 2011 (All Rights Reserved) MAY '11 DS138F6 CS5330A/31A TABLE OF CONTENTS 1. PIN DESCRIPTIONS ................................................................................................................ 3 2. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 4 SPECIFIED OPERATING CONDITIONS ................................................................................. 4 ABSOLUTE MAXIMUM RATINGS ........................................................................................... 4 ANALOG INPUT CHARACTERISTICS .................................................................................... 5 DIGITAL CHARACTERISTICS................................................................................................. 6 DIGITAL FILTER CHARACTERISTICS ................................................................................... 6 SWITCHING CHARACTERISTICS .......................................................................................... 7 3. GENERAL DESCRIPTION ....................................................................................................... 9 3.1 System Design .................................................................................................................. 9 3.1.1 Master Clock ......................................................................................................... 9 3.1.2 Serial Data Interface ............................................................................................ 9 3.1.3 Master Mode ......................................................................................................... 9 3.1.4 Slave Mode ......................................................................................................... 10 3.1.5 CS5330A ............................................................................................................. 10 3.1.6 CS5331A ............................................................................................................. 10 3.1.7 Analog Connections ............................................................................................ 11 3.1.8 High-Pass Filter .................................................................................................. 11 3.1.9 Initialization and Power-Down ............................................................................. 11 3.1.10 Grounding and Power Supply Decoupling ........................................................ 12 3.1.11 Digital Filter ....................................................................................................... 13 4. PARAMETER DEFINITIONS .................................................................................................. 14 5. REFERENCES ........................................................................................................................ 15 6. PACKAGE DESCRIPTIONS .................................................................................................. 15 7. ORDERING INFORMATION ................................................................................................. 16 8. REVISION HISTORY .............................................................................................................. 16 LIST OF FIGURES Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Typical Connection Diagram......................................................................................... 8 Data Output Timing-CS5330A .................................................................................... 10 Data Output Timing - CS5331A (I²S Compatible) ....................................................... 10 CS5330A/31A Initialization and Power-Down Sequence............................................ 12 CS5330A/31A Digital Filter Stopband Rejection......................................................... 13 CS5330A/31A Digital Filter Transition Band ............................................................... 13 CS5330A/31A Digital Filter Passband Ripple ............................................................. 13 CS5330A/31A Digital Filter Transition Band ............................................................... 13 LIST OF TABLES Table 1. 2 Common Clock Frequencies......................................................................................... 9 DS138F6 CS5330A/31A 1. PIN DESCRIPTIONS SERIAL DATA OUTPUT SDATA 1 8 AINL LEFT ANALOG INPUT SERIAL DATA CLOCK SCLK 2 7 VA+ ANALOG POWER LEFT/RIGHT CLOCK LRCK 3 6 AGND ANALOG GROUND MASTER CLOCK MCLK 4 5 AINR RIGHT ANALOG INPUT Pin Name # Pin Description SDATA 1 Audio Serial Data Output (Output) - Two’s complement MSB-first serial data is output on this pin. A 47 k resistor on this pin will place the CS5330A/31A into Master Mode. SCLK 2 Serial Data Clock (Input/Output) - SCLK is an input clock at any frequency from 32x to 64x the output word rate. SCLK can also be an output clock at 64x if in the Master Mode. Data is clocked out on the falling edge of SCLK. LRCK 3 Left/Right Clock (Input/Output) - LRCK selects the left or right channel for output on SDATA. The LRCK frequency must be at the output sample rate. LRCK is an output clock if in Master Mode. Although the outputs of each channel are transmitted at different times, the two words in an LRCK cycle represent simultaneously sampled analog inputs. MCLK 4 Master Clock Input (Input) - Source for the delta-sigma modulator sampling and digital filter clock. Sample rates and digital filter characteristics scale to the MCLK frequency. AINR 5 Analog Right Channel Input (Input) - Analog input for the right channel. Typically 4 Vpp for a full-scale input signal. AGND 6 Analog Ground (Input) - Analog ground reference. VA+ 7 Positive Analog Power (Input) - Positive analog supply (Nominally +5 V). AINL 8 Analog Left Channel Input (Input) - Analog input for the left channel. Typically 4 Vpp for a fullscale input signal. DS138F6 3 CS5330A/31A 2. CHARACTERISTICS AND SPECIFICATIONS (All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical performance characteristics and specifications are derived from measurements taken at nominal supply voltages and TA = 25C.) SPECIFIED OPERATING CONDITIONS (AGND = 0V, all voltages with respect to ground) Parameter Analog Supply Voltage Ambient Operating Temperature (Power Applied) KSZ BSZ, DSZ Symbol Min Typ Max Unit VA+ 4.75 5.0 5.25 V TA -10 -40 - +70 +85 °C °C ABSOLUTE MAXIMUM RATINGS (AGND = 0V, all voltages with respect to ground.) (Note 1) Parameter Analog Supply Voltage Symbol Min Typ Max Unit VA+ -0.3 - +6.0 V Input Current, Any Pin Except Supplies (Note 2) lin - - ±10 mA Analog Input Voltage (Note 3) VINA -0.7 - VA+0.7 V Digital Input Voltage (Note 3) VIND -0.7 - VA+0.7 V Ambient Temperature (power applied) TA -55 - +125 °C Storage Temperature Tstg -65 - +150 °C Notes: 1. Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. 2. Any pin except supplies. Transient current of up to +/- 100 mA on the analog input pins will not cause SCR latch-up. 3. The maximum over/under voltage is limited by the input current. 4 DS138F6 CS5330A/31A ANALOG INPUT CHARACTERISTICS (-1 dBFS input sine wave, 997 Hz; Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified; Logic 0 = 0V, Logic 1 = VD+) Parameter Dynamic Performance Dynamic Range CS5330A/31A-KSZ Symbol Min Typ Max A-weighted unweighted Total Harmonic Distortion + Noise (Note 4) -1 dB THD+N -20 dB -60 dB Total Harmonic Distortion -1 dB Interchannel Phase Deviation Interchannel Isolation (DC to 20 kHz) DC Accuracy Interchannel Gain Mismatch Gain Error Gain Drift Offset Error (Note 5) Analog Input Full-scale Input Voltage Input Impedance (Fs = 48 kHz) Input Bias Voltage Power Supplies Power Supply Current VA+ THD Unit 88 86 94 92 - 86 84 94 92 - dB dB - -84 -72 -32 75 66 26 - -84 -72 -32 75 66 26 dB dB dB - 0.003 0.02 - 0.003 0.2 % - 0 - - 0 - Degree - 90 - - 90 - dB - 0.1 - - 0.1 - dB - - ±10 - - ±10 % - 150 - - 150 - ppm/°C - - 0 - - 0 LSB VIN 3.6 4.0 4.4 3.6 4.0 4.4 Vpp ZIN - 100 - - 100 - k 2.2 2.4 2.6 2.2 2.4 2.6 V - 30 100 42 1000 - 30 100 42 1000 mA µA - 150 0.5 220 5.25 - 150 0.5 220 5.25 mW mW - - 50 - dB IA+ Power down Power Dissipation CS5330A-BSZ CS5331A-DSZ Min Typ Max Normal Power down PSRR 50 Power Supply Rejection Ratio * Refer to Parameter Definitions at the end of this data sheet. 4. Referenced to typical full-scale input voltage. 5. Internal highpass filter removes offset. DS138F6 5 CS5330A/31A DIGITAL CHARACTERISTICS Parameter Symbol Min Typ Max Unit High-Level Input Voltage VIH 2.4 - - V Low-Level Input Voltage VIL - - 0.8 V High-Level Output Voltage at lo = -20 µA VOH VA-1.0 - - V Low-Level Output Voltage at lo = 20 µA VOL - - 0.4 V Iin - - ±10.0 µA Input leakage Current DIGITAL FILTER CHARACTERISTICS (FS = 48 kHz) Parameter Passband (0.05) Symbol (Note 6) Passband Ripple Stopband (Note 6) Stopband Attenuation (Note 7) Group Delay (Note 8) Min Typ Max Unit 0.02 - 21.7 kHz - - ±0.05 dB 29 - 6115 kHz 80 - - dB tgd - 15/Fs - s tgd - - 0 µs (Note 6) - 3.7 20 - Hz Hz (Note 6) - 10 - Degree - - 0 dB Group Delay Variation vs. Frequency High Pass Filter Characteristics Frequency Response: Phase Deviation -3 dB -0.1 dB @ 20 Hz Passband Ripple 6. Filter characteristics scale with output sample rate. 7. The analog modulator samples the input at 6.144 MHz for an output sample rate of 48 kHz. There is no rejection of input signals which are multiples of the sampling frequency (n x 6.144 MHz ±21.7 kHz where n = 0,1,2,3…). 8. Group delay for Fs = 48 kHz, tgd = 15/48 kHz = 312 µs. 6 DS138F6 CS5330A/31A SWITCHING CHARACTERISTICS (Inputs: Logic 0 = 0V, Logic 1 = VA+; CL = 20 pF) Switching characteristics are guaranteed by characterization. Parameter Symbol Min Typ Max Unit Fs 2 - 50 kHz clkw 78 - 1000 ns MCLK/LRCK = 256 t clkl 31 - 1000 ns MCLK/LRCK = 256 t clkh 31 - 1000 ns MCLK/LRCK = 384 t clkw 52 - 1000 ns MCLK/LRCK = 384 t clkl 20 - 1000 ns MCLK/LRCK = 384 t clkh 20 - 1000 ns MCLK/LRCK = 512 t Output Sample Rate MCLK Period MCLK Low MCLK High MCLK Period MCLK Low MCLK High MCLK Period MCLK/LRCK = 256 t clkw 39 - 1000 ns clkl 13 - 1000 ns clkh 13 - 1000 ns MCLK Low MCLK/LRCK = 512 t MCLK High MCLK/LRCK = 512 t MASTER MODE SCLK falling to LRCK tmslr -10 - 10 ns SCLK falling to SDATA valid tsdo -10 - 35 ns - 50 - % SCLK Duty cycle SLAVE MODE LRCK duty cycle 25 50 75 % tclkw (Note 9) - - ns SCLK Pulse Width Low tclkl (Note 10) - - ns SCLK Pulse Width High tclkh 20 - - ns SCLK falling to SDATA valid tdss - - (Note 11) ns tlrdss - - (Note 11) ns SCLK rising to LRCK edge delay tslr1 20 - - ns LRCK edge to rising SCLK setup time tslr2 (Note 11) - - ns SCLK Period LRCK edge to MSB valid 9. 1 64 Fs 10. 1 - 15 ns 128 Fs 11. 1 + 5 ns 256 Fs DS138F6 7 CS5330A/31A SCLK output SCLK output t mslr t mslr LRCK output LRCK output t sdo t sdo SDATA SDATA SCLK to SDATA LRCK - MASTER mode (CS5331A) SCLK to SDATA LRCK - MASTER mode (CS5330A) t slr1 t slr2 t slr1 t slr2 t sclkl t sclkh SCLK input (SLAVE mode) t sclkl t sclkh SCLK input (SLAVE mode) t sclkw t sclkw LRCK input (SLAVE mode) LRCK input (SLAVE mode) t lrdss t dss MSB SDATA MSB-1 t dss MSB-2 SCLK to LRCK & SDATA - SLAVE mode (CS5330A) +5V Analog 10 μF MSB SDATA MSB-1 SCLK to LRCK & SDATA - SLAVE mode (CS5331A) 0.1 μF + 7 VA+ 150 Ω .47 μF ** Analog Input Circuits 150 Ω 8 AINL .01 μF CS5330A CS5331A .47 μF ** Audio Data Processor 5 MCLK SCLK LRCK AINR .01 μF SDATA 4 1 kΩ 2 1 kΩ 3 1 kΩ 1 1 kΩ * Timing Logic & Clock 47 kΩ AGND * Required for Master mode only ** Optional if analog input circuits biased to within ± 5% of CS5330A/CS5331A nominal input bias voltage 6 Figure 1. Typical Connection Diagram 8 DS138F6 CS5330A/31A 3. GENERAL DESCRIPTION The CS5330A and CS5331A are 18-bit, 2-channel Analog-to-Digital Converters designed for digital audio applications. Each device uses two one-bit delta-sigma modulators which simultaneously sample the analog input signals at 128 times the output sample rate (Fs). The resulting serial bit streams are digitally filtered, yielding pairs of 18-bit values. This technique yields nearly ideal conversion performance independent of input frequency and amplitude. The converters do not require difficult-to-design or expensive anti-alias filters and do not require external sampleand-hold amplifiers or a voltage reference. The CS5330A and CS5331A differ only in the output serial data format. These formats are discussed in the following sections and shown in Figures 2 and 3. An on-chip voltage reference provides for a single-ended input signal range of 4.0 Vpp. Output data is available in serial form, coded as 2’s complement 18-bit numbers. Typical power consumption is 150 mW which can be further reduced to 0.5 mW using the Power-Down mode. For more information on delta-sigma modulation, see the references at the end of this data sheet. 3.1 System Design Very few external components are required to support the ADC. Normal power supply decoupling components and a resistor and capacitor on each input for anti-aliasing are all that are required, as shown in Figure 1. 3.1.1 Master Clock The master clock (MCLK) runs the digital filter and is used to generate the delta-sigma modulator sampling clock. Table 1 shows some common master clock frequencies. The output sample rate is equal to the frequency of the Left / Right Clock (LRCK). The serial nature of the output data results in the left and right data words being read at different times. However, the words within an LRCK cycle represent simultaneously sampled analog inputs. The serial clock (SCLK) shifts the digitized audio data from the internal data registers via the SDATA pin. 3.1.2 Serial Data Interface LRCK (kHz) MCLK (MHz) 256x 384x 512x 32 8.1920 12.2880 16.3840 44 11.2896 16.9344 22.5792 48 12.2880 18.4320 24.5760 Table 1. Common Clock Frequencies The CS5330A and CS5331A can be operated in either Master mode, where SCLK and LRCK are outputs, or SLAVE mode, where SCLK and LRCK are inputs. 3.1.3 Master Mode In Master mode, SCLK and LRCK are outputs which are internally derived from MCLK. The CS5330A/31A will divide MCLK by 4 to generate a SCLK which is 64Fs and by 256 to generate LRCK. The CS5330A and CS5331A can be placed in the Master mode with a 47-k pull-down resistor on the SDATA pin as shown in Figure 1. DS138F6 9 CS5330A/31A 3.1.4 Slave Mode LRCK and SCLK become inputs in SLAVE mode. LRCK must be externally derived from MCLK and be equal to Fs. The frequency of SCLK should be equal to 64xLRCK, though other frequencies are possible. MCLK frequencies of 256x, 384x, and 512xFs are supported. The ratio of the applied MCLK to LRCK is automatically detected during power-up and internal dividers are set to generate the appropriate internal clocks. 3.1.5 CS5330A The CS5330A data output format is shown in Figure 2. Notice that the MSB is clocked by the transition of LRCK and the remaining seventeen data bits are clocked by the falling edge of SCLK. The data bits are valid during the rising edge of SCLK. 3.1.6 CS5331A The CS5331A data output format is shown in Figure 3. Notice the one SCLK period delay between the LRCK transitions and the MSB of the data. The falling edges of SCLK cause the ADC to output the eighteen data bits. The data bits are valid during the rising edge of SCLK. LRCK is also inverted compared to the CS5330A interface. The CS5331A interface is compatible with I2S. LRCK 0 1 17 2 18 19 20 21 22 30 31 0 1 17 2 18 19 20 21 22 23 31 0 1 SCLK SDATA 17 16 1 0 17 16 Left Audio Data 1 0 Right Audio Data Figure 2. Data Output Timing-CS5330A LRCK 0 1 2 3 18 19 20 21 22 30 31 0 1 2 18 19 20 21 3 22 23 31 0 1 SCLK SDATA 17 16 1 Left Audio Data 0 17 16 1 0 Right Audio Data Figure 3. Data Output Timing - CS5331A (I²S Compatible) 10 DS138F6 CS5330A/31A 3.1.7 Analog Connections Figure 1 shows the analog input connections. The analog inputs are presented to the modulators via the AINR and AINL pins. Each analog input will accept a maximum of 4 Vpp centered at +2.4 V. The CS5330A/31A samples the analog inputs at 128 Fs, 6.144 MHz for a 48 kHz sample-rate. The digital filter rejects all noise above 29 kHz except for frequencies right around 6.144 MHz 21.7 kHz (and multiples of 6.144 MHz). Most audio signals do not have significant energy at 6.144 MHz. Nevertheless, a 150 resistor in series with each analog input and a 10 nF capacitor across the inputs will attenuate any noise energy at 6.144 MHz, in addition to providing the optimum source impedance for the modulators. The use of capacitors which have a large voltage coefficient must be avoided since these will degrade signal linearity. It is also important that the self-resonant frequency of the capacitor be well above the modulator sampling frequency. General purpose ceramics and film capacitors do not meet these requirements. However, NPO and COG capacitors are acceptable. If active circuitry precedes the ADC, it is recommended that the above RC filter is placed between the active circuitry and the AINR and AINL pins. The above example frequencies scale linearly with Fs. 3.1.8 High-Pass Filter The operational amplifiers in the input circuitry driving the CS5330A/31A may generate a small DC offset into the A/D converter. The CS5330A/31A includes a high pass filter after the decimator to remove any DC offset which could result in recording a DC level, possibly yielding "clicks" when switching between devices in a multichannel system. The characteristics of this first-order high pass filter are outlined in the “Digital Filter Characteristics” on page 6 3.1.9 Initialization and Power-Down The Initialization and Power-Down sequence is shown in Figure 4. Upon initial power-up, the digital filters and delta-sigma modulators are reset and the internal voltage reference is powered down. The device will remain in the Initial Power-Down mode until MCLK is presented. Once MCLK is available, the CS5330A/31A will make a master/slave mode decision based upon the presence/absence of a 47-k pull-down resistor on SDATA as shown in Figure 1. The master/slave decision is made during initial power-up as shown in Figure 4. In master mode, SCLK and LRCK are outputs where the MCLK/LRCK frequency ratio is 256x. LRCK will appear as an output 127 MCLK cycles into the initialization sequence. At this time, power is applied to the internal voltage reference and the analog inputs will move to approximately 2.4 Volts. SDATA is static low during the initialization and high pass filter settling sequence, which requires 11,265 LRCK cycles (235 ms at a 48 kHz output sample rate). In slave mode, SCLK and LRCK are inputs where the MCLK/LRCK frequency ratio must be either 256x, 384x,or 512x. Once the MCLK and LRCK are detected, MCLK occurrences are counted over one LRCK period to determine the MCLK/LRCK frequency ratio. At this time, power is applied to the internal voltage reference and the analog inputs will move to approximately 2.4 Volts. SDATA is static high during the initialization and high pass filter settling sequence, which requires 11,265 LRCK cycles (235 ms at a 48 kHz sample rate). DS138F6 11 CS5330A/31A Figure 4. CS5330A/31A Initialization and Power-Down Sequence The CS5330A and CS5331A have a Power-Down mode wherein typical consumption drops to 0.5 mW. This is initiated when a loss of clock is detected on either the LRCK or MCLK pins in Slave Mode, or the MCLK pin in Master Mode. The initialization sequence will begin when MCLK (and LRCK for slave mode) are restored. In slave mode power-down, the CS5330A and CS5331A will adapt to changes in MCLK/LRCK frequency ratio during the initialization sequence. It is recommended that clocks not be applied to the device prior to power supply settling. A reset circuit may be implemented by gating the MCLK signal. 3.1.10 Grounding and Power Supply Decoupling As with any high resolution converter, the ADC requires careful attention to power supply and grounding arrangements if its potential performance is to be realized. Figure 1 shows the recommended power arrangements with VA+ connected to a clean +5-V supply. Decoupling capacitors should be as near to the ADC as possible, with the low value ceramic capacitor being the nearest. To minimize digital noise, connect the ADC digital outputs only to CMOS inputs. The printed circuit board layout should have separate analog and digital regions and ground planes. An evaluation board, CDB5330A or CDB5331A, is available which demonstrates the optimum layout and power supply arrangements, as well as allowing fast evaluation of the CS5330A and CS5331A. 12 DS138F6 CS5330A/31A 3.1.11 Digital Filter Figures 5 through 8 show the attenuation characteristics of the digital filter included in the ADC. The filter response scales linearly with sample rate. The x-axis has been normalized to Fs and can be scaled by multiplying the x-axis by the system sample rate, i.e. 48 kHz. 0 2 -10 0 -20 -30 -2 Magnitude (dB) -40 -50 -60 -70 -80 -90 -4 -6 -8 -100 -110 -120 0.0 -10 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 .46 1.0 .47 .48 .49 .50 .51 .52 .53 .54 Normalized Input Frequency Normalized Input Frequency Figure 5. CS5330A/31A Digital Filter Stopband Rejection Figure 6. CS5330A/31A Digital Filter Transition Band 0.05 0.0 0.04 -10.0 0.03 -20.0 0.02 -30.0 0.01 -40.0 0.00 -50.0 -0.01 -60.0 -0.02 -70.0 -0.03 -80.0 -0.04 -90.0 -100.0 -0.05 0 0.1 0.2 0.3 0.4 0.5 Normalized Input Frequency Figure 7. CS5330A/31A Digital Filter Passband Ripple DS138F6 0.40 0.45 0.50 0.60 0.65 0.70 Normalized Input Frequency Figure 8. CS5330A/31A Digital Filter Transition Band 13 CS5330A/31A 4. PARAMETER DEFINITIONS Resolution The total number of possible output codes is equal to 2 N, where N = the number of bits in the output word for each channel. Dynamic Range The ratio of the full-scale rms value of the signal to the rms sum of all other spectral components over the specified bandwidth. Dynamic range is a signal-to-noise measurement over the specified bandwidth made with a -60 dBFS signal. 60 dB is then added to the resulting measurement to refer the measurement to full scale. This technique ensures that the distortion components are below the noise level and do not effect the measurement. This measurement technique has been accepted by the Audio Engineering Society, AES171991, and the Electronic Industries Association of Japan, EIAJ CP-307. Total Harmonic Distortion + Noise (THD+N) The ratio of the rms value of the signal to the rms sum of all other spectral components over the specified bandwidth (typically 10 Hz to 20 kHz), including distortion components. Expressed in decibels. Measured at -1 and -20 dBFS as suggested in AES17-1991 Annex A. Total Harmonic Distortion The ratio of the rms sum of all harmonics up to 20 kHz to the rms value of the signal. Interchannel Phase Deviation The phase difference between the left and right channel sampling times. Interchannel Isolation A measure of crosstalk between the left and right channels. Measured for each channel at the converter’s output with the input under test AC grounded and a full-scale signal applied to the other channel. Units in decibels. Interchannel Gain Mismatch The gain difference between left and right channels. Units in decibels. Gain Error The deviation of the measured full-scale amplitude from the ideal full-scale amplitude value. Gain Drift The change in gain value with temperature. Units in ppm/°C. Bipolar Offset Error The deviation of the mid-scale transition (111...111 to 000...000) from the ideal. Units in LSBs. 14 DS138F6 CS5330A/31A 5. REFERENCES 1. Area Efficient Decimation Filter for an 18-Bit Delta- Sigma ADC, by K. Lin and J. J. Paulos. Paper presented at the 98th Convention of the Audio Engineering Society, February 1995. 2. An 18-Bit, 8-Pin Stereo Digital-to-Analog Converter, by J. J. Paulos, A. W. Krone, G. D. Kamath and S. T. Dupuie. Paper presented at the 97th Convention of the Audio Engineering Society, November 1994. 3. An 18-Bit Dual-Channel Oversampling Delta-Sigma A/D Converter, with 19-Bit Mono Application Example, by Clif Sanchez. Paper presented at the 87th Convention of the Audio Engineering Society, October 1989. 4. The Effects of Sampling Clock Jitter on Nyquist Sampling Analog-to-Digital Converters, and on Oversampling Delta Sigma ADC’s, by Steven Harris. Paper presented at the 87th Convention of the Audio Engineering Society, October 1989. 5. A Stereo 16-bit Delta-Sigma A/D Converter for Digital Audio, by D. R. Welland, B. P. Del Signore, E. J. Swanson, T. Tanaka, K. Hamashita, S. Hara, K. Takasuka. Paper presented at the 85th Convention of the Audio Engineering Society, November 1988. 6. PACKAGE DESCRIPTIONS A 8-Pin SOIC B E D C G F H I J DIM A B C D E F G H I J Millimeters MIN MAX 5.15 5.35 1.27 TYP 0 0.25 1.77 1.88 0.33 0.51 .15 0.25 0° 8° 5.18 5.4 0.48 0.76 7.67 8.1 Inches MIN 0.203 0.050 0 0.070 0.013 0.006 0° 0.204 0.019 0.302 MAX 0.210 TYP 0.010 0.074 0.020 0.010 8° 0.213 0.030 0.319 Note: The EIAJ Package is not a standard JEDEC package size. DS138F6 15 CS5330A/31A 7. ORDERING INFORMATION Product CS5330A CS5331A CS5330A CS5331A Description 8-pin, Stereo A/D Converter for Digital Audio 8-pin, Stereo A/D Converter for Digital Audio 8-pin, Stereo A/D Converter for Digital Audio 8-pin, Stereo A/D Converter for Digital Audio Package Pb-Free Grade Temp Range 8-SOIC YES Commercial -10° to +70° C 8-SOIC YES Commercial -10° to +70° C 8-SOIC YES Automotive -40° to +85° C 8-SOIC YES Automotive -40° to +85° C Container Bulk Tape & Reel Bulk Tape & Reel Bulk Tape & Reel Bulk Tape & Reel Order # CS5330A-KSZ CS5330A-KSZR CS5331A-KSZ CS5331A-KSZR CS5330A-BSZ CS5330A-BSZR CS5331A-DSZ CS5331A-DSZR 8. REVISION HISTORY Release Changes F5 Updated Ordering Information F6 • Removed CS5330A-KS, CS5330A-KSR, CS5331A-KS, CS5331A-KSR, and CS5330A-BS, and CS5330A-BSR from the ordering information table in Section 7 as well as corresponding data in Section 2, “Characteristics and Specifications.” • Added entry for BSZ and BSZR automotive products to Ordering Information. • Added CS5330A-BSZ to heading of Analog Input Characteristics table in Section 2. Contacting Cirrus Logic Support For all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find the one nearest to you, go to www.cirrus.com. IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. 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