Datasheet

VoiceUplink(TX)Filter16kHz
–10
–8
–6
–4
–2
0
2
0 100 200 300 400 500 600
Frequency(Hz)
1storderHPF
Specification
Gain(dB)
032-046
VoiceUplink(TX)Filter16kHz
–10
–8
–6
–4
–2
0
2
6200 6400 6600 6800 7000
Frequency(Hz)
1storderHPF
Specification
Gain(dB)
032-047
TPS65950
www.ti.com SWCS032E–OCTOBER 2008–REVISED JANUARY 2011
6.2.10.2 Voice Uplink Filter (Sampling Frequency at 16 kHz)
Figure 6-33 and Figure 6-34 show the voice uplink frequency response with a sampling frequency of 16
kHz.
Figure 6-33. Voice Uplink Frequency Response With F
S
= 16 kHz (Frequency Range 0 to 600 Hz)
Figure 6-34. Voice Uplink Frequency Response With F
S
= 16 kHz (Frequency Range 6200 to 7000 Hz)
Table 6-25 lists the voice filter frequency responses relative to reference gain at 1 kHz with F
S
= 16 kHz.
Table 6-25. Digital Voice Filter TX Electrical Characteristics With F
S
= 16 kHz
Parameter Test Conditions Min Typ Max Unit
Frequency response relative to reference gain at 1 kHz (first-order 300 to 6600 Hz –0.5 0.5 dB
HPF)
6800 Hz –1.5 0.1
8000 Hz –0.5 0 –17
9200 Hz –1.5 0 –40
12000 Hz –45
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