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參數資料
型號: TPS65950ZXNR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝: 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數: 58/167頁
文件大?。?/td> 2566K
代理商: TPS65950ZXNR
PCM.VFS
PCM.VCK
PCM.VDR
PCM.VDX
15
14
1
0
49dummybits
15
14
15
14
1
0
49dummybits
15
14
P3
P4
P5
P1
P0
P6
P7
032-082
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
Figure 13-6. Voice PCM Interface—Slave Mode (Mode 1)
The timing requirements in Table 13-9 are valid on the following conditions of input slew and output load:
Rise and fall time range of inputs (SYNC, DIN) is t
R/tF = 1.0 ns/6.5 ns
Capacitance load range of outputs (CLK, SYNC, DOUT) is C
Load = 1 pF/30 pF
Table 13-9 lists the timing requirements for the voice PCM interface, mode 1.
Table 13-9. Voice PCM Interface Timing Requirements (Mode 1)
Notation
Parameter
Min(1)
Max(2)
Unit
Voice/Bluetooth PCM Master Mode
P3
tsu(VDR-VCK)
Setup time, PCM.VDR valid to PCM. VCK transition (3)
30
ns
P4
th(VDR-VCK)
Hold time, PCM.VDR valid from PCM.VCK transition(3)
0
ns
Voice PCM Slave Mode
P0
tc(VCK)
Cycle time, PCM.VCK(4)
1/(33 to 65 * Fs)
ns
P1
tw(VCK)
Pulse duration, PCM.VCK high or low(5)
0.45 * P 0.55 * P
ns
P3
tsu(VDR-VCK)
Setup time, PCM.VDR valid to PCM. VCK transition(3)
10
ns
P4
th(VDR-VCK)
Hold time, PCM.VDR valid from PCM. VCK transition(3)
5
ns
P6
th(VFS-VCK)
Hold time, PCM.VFS valid from PCM.VCK transition(3)
5
ns
P7
tSU(VFS-VCK)
Setup time, PCM.VFS valid to PCM. VCK transition (3)
10
ns
(1)
Min = Minimum value
(2)
Max = Maximum value
(3)
Writing on PCM.VCK rising edge (mode 1) and writing on PCM.VCK falling edge (mode 2).
(4)
Fs = 8 or 16 kHz
(5)
P = PCM.CLK period
Table 13-10 lists the switching characteristics of the voice PCM interface, mode 1.
Table 13-10. Voice PCM Interface Switching Characteristics (Mode 1)
Notation
Parameter
Min(1)
Max(2)
Unit
Voice/Bluetooth PCM Master Mode
P0
tc(VCK)
Cycle time, PCM.VCK(3)
1/65 * Fs
ns
P1
tw(VCK)
Pulse duration, PCM.VCK high or low(4)
0.45 * P
0.55 * P
ns
(1)
Min = Minimum value
(2)
Max = Maximum value
(3)
Fs = 8 or 16 kHz
(4)
P = PCM.CLK period
Timing Requirements and Switching Characteristics
150
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