ak4115 AKM Semiconductor, Inc., ak4115 Datasheet - Page 32

• Manufacturer Part Number: ak4115
• Description: High Feature 192khz 24bit Digital Audio Interface Transceiver
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
2-2. Consumer Mode (TVDD = 2.7V ∼ 5.5V)
For consumer use , the specifications require an output impedance of 75 ohms ±20% and a driver level of 0.5 ± 20%
volts peak to peak. A combination of R1 in parallel with R2 meets this requirement. The outputs can be set to ground by
resetting the device or a software mute.
C1 and R should be connected in series and attached between FILT pin and AVSS in parallel with C2. The value of PLL
Loop Filter includes temperature deviation. Be careful to minimize the noise into the FILT pin. When the Studio Sync
mode is not used, FILT pin can be open.
MS0573-E-00
PLL Loop Filter
TXP1
TXN1
Figure 26. Consumer Output Driver Circuit at AC coupling
0.1uF
open
24k ± 5%
R [Ω]
R1
Table 24. Value of PLL Loop Filter
Figure 27. PLL Loop Filter
AK4115
R2
FILT
10 ± 30%
C1 [nF]
- 32 -
C1
R
AVSS
T1
100 ± 30%
C2
C2 [pF]
75Ω cable
TVDD R1
3.3V
3.0V
5.0V
270Ω 150Ω
240Ω 150Ω
430Ω 150Ω
R2
[AK4115]
2006/12