TC9404FNG Datasheet, PDF (1/15 Pages) Toshiba Semiconductor – Σ-Δ Modulation System DA Converter with Analog Filter

TC9404FNG
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9404FNG
Σ-∆ Modulation System DA Converter with Analog Filter
TC9404FNG is a 2’nd order Σ-∆ modulation system 1-bit DA
converter incorporating an 8-times over sampling digital filter
and analog filter developed for digital audio equipment.
Because the IC includes an analog filter, it can output a direct
analog waveform, thus reducing the size and cost of the DA
converter.
Features
• Built-in 8-times over sampling digital filter
P-SSOP24-300-0.65A
• Low-voltage operates (3.0 V) possible
• Built-in digital de-emphasis filter
Weight: 0.14 g (typ.)
• In serial mode, output amplitude can be set in 128 steps of
resolution using microcontroller command.
• In parallel mode, soft mute can beset for the output signal in 64 steps in 20 ms.
• Built-in LR common digital zero detection output circuit
• Over sampling ratio (OSR) of Σ-∆ modulation circuit is 192 fs
• Support double speed operation
• Sampling frequency: 44.1 kHz, 32 kHz, 48 kHz
• Built-in 3’rd order analog filter
• The digital filter and DA converter characteristics are as follows:
Digital Filter (fs = 44.1 kHz)
DA Converter (V_DD = 5 V)
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2006-04-27