STW5093CYL ST-Ericsson Inc, STW5093CYL Datasheet - Page 19

• Manufacturer Part Number: STW5093CYL
• Description: IC FILTR/CODEC 14BIT AUD 30TSSOP
• Manufacturer: ST-Ericsson Inc
• Type: Stereo Audior

Specifications of STW5093CYL

• Data Interface: PCM Audio Interface
• Resolution (bits): 14 b
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: No
• Voltage - Supply, Analog: 2.7 V ~ 3.3 V
• Voltage - Supply, Digital: 2.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 30-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

tone range" (i.e. from 15.6Hz to 3984Hz in 15.6Hz step) according to the values described in CONTROL REG-
ISTER CR8 and CR9.
CONTROL REGISTER CR11
Bit BE(7) permits connection of a f1 squarewave PWM Ring signal, amplitude modulated or not by a f2 square-
wave signal, to buzzer driver output BZ. Bits BZ5 to BZ0 define the duty cycle of the PWM squarewave, accord-
ing to the following formula:
Duty Cycle = CR11(5 to 0) x 0.78125%
where CR11(5 to 0) is the decimal equivalent of the binary value BZ5 to BZ0.
When BE = 1, if bits F1 = 1 and F2 = 0 in register CR7, a f1 PWM ring signal is present at the buzzer output,
while if bits F1 = 1 and F2 = 1 in register CR7 the f1 PWM ring signal is also amplitude modulated by a f2 square-
wave frequency. Bit BI (6) allows to chose the logic level at which the duty cycle is referred: BI = 0 means that
duty cycle is intended as the relative width of the logic1, while BI = 1 means that duty cycle is intended as the
relative width of the logic 0. When BE = 0 (or during power down) BZ = 0 if BI = 0 or BZ = 1 if BI = 1.
Table 14. Examples of Usual Frequency Selection (Standard frequency tone range)
Tone 250 Hz
Tone 330 Hz
Tone 425 Hz
Tone 440 Hz
Tone 800 Hz
Tone 1330 Hz
DTMF 697Hz
DTMF 770 Hz
DTMF 852 Hz
DTMF 941 Hz
DTMF 1209 Hz
DTMF 1336 Hz
DTMF 1477 Hz
DTMF 1633 Hz
SOL
LA
SI
DO
RE
MI flat
MI
FA
FA sharp
SOL
SOL sharp
LA
SI
DO
RE
MI
Description
f1 value (decimal)
102
170
109
120
155
171
189
209
100
106
113
126
134
150
169
32
42
54
56
89
99
50
56
63
67
75
80
84
89
95
Theoretic value (Hz)
1174.66
523.25
587.33
622.25
659.25
1046.5
1318.5
698.5
830.6
987.8
1330
1209
1336
1477
1633
250
330
425
440
800
697
770
852
941
392
440
494
740
784
880
Typical value (Hz)
1328.1
1210.9
1335.9
1476.6
1632.8
1046.9
1171.9
1320.4
328.2
421.9
437.5
796.9
695.3
773.4
851.6
937.5
390.6
437.5
492.2
523.5
586.0
625.0
656.3
695.3
742.2
781.3
828.2
882.9
984.4
250
Error%
+.44
+.16
+.04
+.45
+.30
+.33
+.04
+.14
-.00
-.56
-.73
-.56
-.39
-.14
-.24
-.05
-.37
-.01
-.30
-.56
-.34
-.23
-.45
-.45
-.34
-.29
-.34
-.23
.00
.00
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