TDF8599TD/N2,512 NXP Semiconductors, TDF8599TD/N2,512 Datasheet - Page 9

• Manufacturer Part Number: TDF8599TD/N2,512
• Description: IC AMP AUDIO PWR 85W D 36HSOP
• Manufacturer: NXP Semiconductors
• Type: Class Dr

Specifications of TDF8599TD/N2,512

• Output Type: 1-Channel (Mono) or 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 85W x 1 @ 1 Ohm; 70W x 2 @ 2 Ohm
• Voltage - Supply: 8 V ~ 18 V
• Features: Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 36-HSOP
• Operational Class: Class-D
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.02@4Ohm@1W%
• Single Supply Voltage (typ): 14.4V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Power Dissipation: 15W
• Rail/rail I/o Type: No
• Single Supply Voltage (min): 8V
• Single Supply Voltage (max): 18V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 36
• Package Type: HSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935287028512

NXP Semiconductors
TDF8599_2
Product data sheet
8.3.2 Spread spectrum mode (Master mode)
The value of the resistor R
In Master mode, Spread spectrum mode and frequency hopping can be enabled. In Slave
mode, phase staggering and phase lock operation can be selected. An external clock can
be used as the master-clock on pin OSCIO of the slave devices. When using an external
clock it must remain active during the shutdown sequence to ensure that all devices are
switched off and able to enter the off state as described in
Spread spectrum mode is a technique of modulating the oscillator frequency with a slowly
varying signal to broaden the switching spectrum, thereby reducing the spectral density of
the EMI. Connecting a capacitor (C
Figure
The capacitor on pin SSM (C
mode is active. The current (I
gives a triangular voltage on pin SSM that sweeps around the voltage set by pin OSCSET
f
Fig 5.
Fig 6.
5 %. The voltage on pin SSM is used to modulate the oscillator frequency.
osc
=
7). When pin SSM is connected to pin AGND, Spread spectrum mode is disabled.
12.45 10
--------------------------- - Hz
Clock frequency as a function of R
Master and slave configuration
R
osc
9
TDF8599
Master
OSCSET
R
(k )
OSCIO
osc
Rev. 02 — 30 July 2009
50
40
30
20
10
0
300
osc
SSM
SSM
I
sets the clock frequency based on
2
C-bus controlled dual channel class-D power amplifier
R osc
f
) sets the spreading frequency when Spread spectrum
) flowing in and out of pin SSM is typically 5 A. This
osc
350
SSM
C osc
) to pin SSM enables Spread spectrum mode (see
R
osc
400
TDF8599
Slave 1
OSCSET
OSCIO
450
f
osc
001aai771
(kHz)
Section
TDF8599
Slave 2
500
OSCSET
OSCIO
Equation
001aai772
8.2.
TDF8599
© NXP B.V. 2009. All rights reserved.
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