TDA8942P Datasheet, PDF (19/23 Pages) NXP Semiconductors – 2 x 1.5 W stereo Bridge Tied Load BTL audio amplifier

Philips Semiconductors
TDA8942P
2 x 1.5 W stereo BTL audio amplifier
18. Revision history
Table 11: Revision history
Rev Date
CPCN Description
02 20000314 -
Product specification; second version; supersedes initial version TDA8942P-01 of
14 April 1999 (9397 750 04879). Modifications:
• Table 1 on page 1:THD: Max value 0.1% changed to → 0.3%;
SVRR: Typ value 65 dB → added
• Ordering options removed
• Figure 1 on page 2: Block diagram; pin numbers changed OUT2− → 7 and OUT2+ → 10
• Figure 2 on page 3: Pin configuration; pin numbers changed OUT2− → 7 and OUT2+ → 10
• Table 3 on page 3: Pin description; pin numbers changed OUT2− → 7 and OUT2+ → 10
• Section 8 “Functional description”:
– Section 8.1 “Input configuration” on page 4 → added.
– Section 8.2 “Power amplifier” on page 5: ........, capable of delivering a peak output
current of 1.5 A → changed to 2 A.
– Section 8.2.1 “Output power measurement” on page 5 → added
– Section 8.2.2 “Headroom” on page 5 → added
• Section 8.3 “Mode selection”:
– Standby mode: V_MODE > (V_CC − 0.5 V) → changed to (V_CC − 0.5 V) < V_MODE < V_CC; The
power consumption of the TDA8942P will be reduced to <0.18 mW → added.
– Mute mode: the DC level of the input and output pins remain on half the supply
voltage → added;
– 2.5 V < V_MODE < (V_CC − 1.5 V) → changed to 3 V < V_MODE < (V_CC − 1.5 V)
– Section 8.3.1 “Switch-on and switch-off” on page 6 → added.
• Section 8.4 “Supply Voltage Ripple Rejection (SVRR)” on page 6 → added
• Section 8.5 “Built-in protection circuits” on page 6 → added
• Table 5 on page 7:
– P_tot value added 2.2 W
– V_CC(sc) value added 12 V
• Table 6 on page 7: Rth(j-a) value 55 K/W changed to → 57 K/W
• Table 7 on page 7: VMODE - mute mode - value Min 2.5 → changed to 3 V
• Table 8 on page 8:
– THD: Max value 0.1% changed to → 0.3%
– SVRR; Typ values 65 and 60 dB → added
– α_cs; Typ value 75 dB → added
– R_source changed to → R_S in table and associated table notes; Value added R_S = 0 Ω;
– Table note [2]: .... 100 mV (RMS).... changed to → ... 700 mV (RMS)....
• Figure 3 to 13: figures added
• Section 13 “Internal circuitry” on page 13: → added
• Figure 14: figure modified
9397 750 06862
Product specification
Rev. 02 — 14 March 2000
© Philips Electronics N.V. 2000. All rights reserved.
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