Datasheet High Sound Quality Audio D/A Converters 32-bit, 768 kHz Sampling Stereo Audio D/A Converter BD34301EKV General Description Supply Voltage Range of AVCC(Note 2) 4.5 V to 5.5 V Supply Voltage Range of DVDD 1.4 V to 1.6 V Supply Voltage Range of DVDDIO 3.0 V to 3.6 V SNR(Note 1) 130 dB (Typ) THD+N(Note 1) -115 dB (Typ) Dynamic Range(Note 1) 130 dB (Typ) Operation Temperature Range -25 °C to +85 °C BD34301EKV is 32-bit high sound quality Stereo Audio D/A converter with ROHM original sound quality design, realizing excellent numerical performance (SNR: 130 dB (Typ), THD+N: -115 dB (Typ)) suitable for high-end audio. Favourite sound is selectable by switching 2 kinds of digital FIR filters (Sharp Roll-Off, Slow Roll-Off). PCM I/F supports up to 768 kHz and DSD I/F supports up to 22.4 MHz. MUS-ICTM Series SNR 130 dB (Typ), THD+N -115 dB (Typ) (Note 1) Sampling Frequency 32 kHz to 768 kHz(Note 1) 2 Kinds of Digital FIR Filters (Note 1) DSD 2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz Available Supports Stereo Mode (2ch) and Mono Mode (1ch) Selectable 4 Device Addresses (38h, 3Ah, 3Ch, 3Eh) CD/SACD Player Digital Audio Player (DAP) USB-DAC and Others (Note 1) PCM mode (Note 2) AVCC, AVCC_R and AVCC_L in Typical Application Circuit Typical Application Circuit IOUT_LP BCLK Current Segment Over Sampling Digital FIR Filter Control VREF Modulator VREF_L (Note 3) The written values of external parts are checked by sound test. Changing these values can affect the sound quality. Please check the sound when the values are changed. Current Segment Master Clock Figure 1. Typical Application Circuit MUS-ICTM is a trademark or a registered trademark of ROHM Co., Ltd. 〇Product structure : Silicon integrated circuit www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001 〇This product

www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001

MUS-ICTM stands for ROHM Musical Device MUS-IC. MUS-IC™ series are products designed for high-end audio. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001

Figure 2. Pin Configuration Caution: Open the N.C. pins and the TEST pins (TEST1 to TEST7). The EXP-PAD should be connect to AGND. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001

Digital ground Digital core power supply (1.5 V) Digital ground Digital I/O power supply (3.3 V) PCM I/F serial data / DSD1 data Digital ground Digital core power supply (1.5 V) Rch analog power supply (5.0 V) Rch analog power supply (5.0 V) www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001

Rch analog power supply (5.0 V) Rch analog power supply for Current Segment (5.0 V) Rch analog power supply for Current Segment (5.0 V) Rch analog power supply for Current Segment (5.0 V) Rch analog power supply for Current Segment (5.0 V) Rch external capacitor (Recommended: 0.1 μF + 100 μF) Analog ground Rch external register (Recommended: 910 Ω) Lch external register (Recommended: 910 Ω) Analog power supply (5.0 V) Lch external capacitor (Recommended: 0.1 μF + 100 μF) Lch analog power supply for Current Segment (5.0 V) Lch analog power supply for Current Segment (5.0 V) Lch analog power supply...

Block Diagram Current Segment Current Segment System Control Master Clock Over Sampling Digital FIR Filter Figure 3. Block Diagram Table 1. Description of Blocks Block PCM I/F DSD I/F Description Digital audio interface for PCM audio format 2ch stereo Supports 32 kHz to 768 kHz input sampling frequency Supports 16-bit to 32-bit data formats BCLK = 64 fs Digital audio interface for DSD audio format 2ch stereo Supports 2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz DSD Master Clock Clock control 2-wire interface block for register settings Supports 400 kHz data transmission speed 4 device addresses (38h,...

BD34301EKV Absolute Maximum Ratings (Ta = 25 °C) Parameter Input Voltage Storage Temperature Range Supply Voltage Maximum Junction Temperature Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature...

Unless otherwise specified Ta = 25 °C, AVCC = 5.0 V, DVDDIO = 3.3 V, DVDD = 1.5 V, Input signal frequency = 1 kHz, 20kHz AES17 LPF, Differential output (XLR) measurement, PCM Mode, 24-bit I2S input, fs = 44.1 kHz, MCLK = 11.2896 MHz, Clock 2 (06h) = 01h, FIR Filter 1 (30h) = 01h, FIR Filter 2 (31h) = 80h, Delta Sigma (40h) = 00h Limit Parameter Symbol Unit Conditions Min Typ Max Power Supply Current IAVCC AVCC_L + AVCC_R + AVCC -∞ dBFS (PCM, No signal) DVDDIO Current Dynamic Range Channel Gain Mismatch Output Center Current Peak Output Current Sampling Frequency AVCC Current 0 dBFS, fs = 96 kHz,...

BD34301EKV Electrical Characteristics - continued Unless otherwise specified Ta = 25 °C, AVCC = 5.0 V, DVDDIO = 3.3 V, DVDD = 1.5 V Input Signal Frequency = 1 kHz, 20-kHz AES17 LPF, Differential output (XLR) measurement DSD Mode, fDSD = 5.6448 MHz, MCLK = 45.1584 MHz, Clock 2 (06h) = 01h, DSD Filter (16h) = 01h Limit Parameter Symbol Unit Min Typ Max DSD AC Characteristics 20-kHz AES17 LPF + A-weight(Note 1) 20-kHz AES17LPF, 0 dBFS 20-kHz AES17 LPF + A-weight, -60 dBFS -∞ dBFS (No signal), Bias current single output Dynamic Range Output Center Current Peak Output Current 0 dBFS, Current amplitude...

Current Segment Current Segment Master Clock Over Sampling Digital FIR Filter Figure 5. Measurement Circuit www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 (Note 1) The written values of external parts are checked by sound test. Changing these values can affect the sound quality. Please check the sound when the values are changed