The Cirrus Logic CS4340 is a complete stereo digital-to-analog system including digital interpolation, fourth-order delta-sigma digital-to-analog conversion, digital de-emphasis and switched capacitor analog filtering. The advantages of this architecture include: ideal differential linearity, no distortion mechanisms due to resistor matching errors, no linearity drift over time and temperature and a high tolerance to clock jitter. The CS4340 accepts data at audio sample rates from 4kHz to 100kHz, consumes very little power, and operates over a wide power supply range. The features of the CS4340 are ideal for DVD players, CD players, set-top box and automotive systems.
The CS4340 is a 24‑bit, 96 kHz stereo digital‑to‑analog converter that integrates digital de‑emphasis, switched‑capacitor filtering, and pop‑guard technology. It operates from 3.3 V or 5.0 V supplies, consumes low power, and is suited for DVD players, CD players, set‑top boxes, and automotive audio systems.
The document provides full electrical specifications, pin descriptions, typical connection diagrams, and thermal package data. It also outlines recommended operating conditions, clock jitter sensitivity, and performance parameters such as dynamic range, THD+N, and inter‑channel isolation.
| Dynamic Range | 101 dB |
|---|---|
| THD+N | -91 dB |
| Nominal Power Supply | 3.3 V or 5.0 V |
| Full Scale Output Voltage | 0.6 V‑p‑p (3.3 V), 0.7 V‑p‑p (5.0 V) |
| Output Impedance | 100 Ω |
| Inter‑channel Gain Mismatch | 0.1 dB |
| Gain Drift | +100 ppm/°C |
| Package Thermal Resistance (SOIC) | 74 °C/W |
The device can be powered from a nominal 3.3 V or 5.0 V supply.
The DSZ package operates from –40 °C to +85 °C, while the KS/KSZ/CZZ packages operate from –10 °C to +70 °C.
Yes, the CS4340 features Popguard® technology to control clicks and pops.
The inter‑channel isolation is specified as –102 dB at 1 kHz.