参数资料
型号: TDF8599TD
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: 70 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO36
封装: PLASTIC, SOT851-2, HSOP-36
文件页数: 3/53页
文件大小: 329K
代理商: TDF8599TD
TDF8599_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 30 July 2009
11 of 53
NXP Semiconductors
TDF8599
I2C-bus controlled dual channel class-D power amplier
Connecting pin SSM to pin AGND disables phase lock operation and causes the slave to
directly use the external oscillator signal. Values for CPLL_s, CPLL_p and RPLL depend on
the desired loop bandwidth (BPLL) of the PLL. RPLL is given by: RPLL = 8.4 × BPLL . The
corresponding values for CPLL_s and CPLL_p are given by Equation 3 and Equation 4:
(3)
Remark: CPLL_p is only needed when 14 π phase shift is selected. See Section 8.4.2 for
more detailed information.
(4)
When pin OSCIO is connected to a clock-master with Spread spectrum mode enabled,
the PLL loop bandwidth BPLL should be 100 × fSSM.
Table 7 lists all oscillator modes.
8.4 Operation mode selection
Pin MOD is used to select specic operating modes. The value of resistor (RMOD)
connected between pins MOD and AGND together with the non-I2C-bus mode or I2C-bus
mode determine the operating mode (see Table 8). The mode of operation depends on
whether non-I2C-bus mode or I2C-bus mode is active. This in turn is determined by the
resistor value connected between pins ADS and AGND.
(1) Only needed when 1
4 π phase shift is
selected.
a. Off
b. On
Fig 9.
Phase lock operation
Table 7.
Oscillator modes
OSCSET pin
OSCIO pin
SSM pin
Oscillator modes
Rosc > 26 k
output
CSSM to pin AGND
master, spread spectrum
Rosc > 26 k
output
shorted to pin AGND
master, no spread spectrum
Rosc =0
input
CPLL +RPLL to pin AGND slave, PLL enabled
Rosc =0
input
shorted to pin AGND
slave, PLL disabled
C
PLL_p
0.032
R
PLL
B
PLL
×
------------------------------- F
[]
=
C
PLL_s
0.8
R
PLL
B
PLL
×
------------------------------- F
[]
=
001aai776
100
A
SSM
OSCSET
PLL
001aai777
100
A
PLL
OSCSET
RPLL
CPLL_p(1)
CPLL_s
SSM
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