TDF8599 NXP Semiconductors, TDF8599 Datasheet - Page 11

• Manufacturer Part Number: TDF8599
• Description: I2C-bus controlled dual channel 43 W/2 W single channel 85 W/1 W class-D power amplifier
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
TDF8599_1
Product data sheet
8.4 Operation mode selection
directly. Values for C
(BW
C
Remark: C
more detailed information.
When pin OSCIO is connected to a clock-master with Spread spectrum mode enabled,
the PLL loop bandwidth BW
See
Table 7.
Pin MOD is used to select specific operation modes. The resistor (R
between pins MOD and AGND determines the operation mode. The mode of operation
depends on whether non-I
determined by the resistor value connected between pins ADS and AGND.
C
C
OSCSET pin
R
R
R
R
Fig 9.
PLL_s
PLL_p
PLL_s
osc
osc
osc
osc
PLL
Table 7
> 26 k
> 26 k
= 0
= 0
a. Off
and C
) of the PLL. R
=
=
Phase lock operation
------------------------------------ F
R
------------------------------------ F
R
Oscillator modes
PLL_P
PLL
PLL
for all oscillator modes.
100 A
PLL_p
0.032
0.8
PLL
BW
is only needed when /4 phase shift is selected. See
BW
OSCIO pin
output
output
input
input
are given by:
PLL_s
PLL
PLL
Rev. 01 — 13 November 2008
PLL
OSCSET
SSM
, C
is given by: R
001aai776
2
C-bus mode or I
PLL
PLL_p
should be 100
and R
SSM pin
C
shorted to AGND
C
shorted to AGND
ssm
PLL
PLL
PLL
Class-D power amplifier with load diagnostics
+ R
= 8.4
depend on the desired loop bandwidth
2
PLL
C-bus mode is active. This is in turn
f
SSM
BW
100 A
b. On
.
PLL
PLL
Oscillator modes
master, spread spectrum
master, no spread spectrum
slave, PLL enabled
slave, PLL disabled
. The corresponding values for
OSCSET
SSM
MOD
R PLL
C PLL_s
Section 8.4.2
TDF8599
© NXP B.V. 2008. All rights reserved.
) connected
C PLL_P (1)
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11 of 52
for
(3)
(4)