CS4299-JQ Cirrus Logic Inc, CS4299-JQ Datasheet - Page 38
![no-image](/images/manufacturer_photos/0/1/141/cirrus_logic_inc_sml.jpg)
CS4299-JQ
Manufacturer Part Number
CS4299-JQ
Description
Audio Codec 1ADC / 1DAC 18-Bit/20-Bit 48-Pin LQFP
Manufacturer
Cirrus Logic Inc
Type
PCMr
Datasheet
1.CS4299-JQ.pdf
(52 pages)
Specifications of CS4299-JQ
Package
48LQFP
Adc/dac Resolution
18/20 Bit
Number Of Channels
1ADC /1 DAC
Sampling Rate
48 KSPS
Number Of Adc Inputs
8
Number Of Dac Outputs
3
Number Of Dacs
1
Operating Supply Voltage
3.3|5 V
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS4299-JQ
Manufacturer:
CAYSTRL
Quantity:
5 510
Company:
Part Number:
CS4299-JQ
Manufacturer:
CRYSTAL
Quantity:
624
Company:
Part Number:
CS4299-JQEP
Manufacturer:
CAYSTRL
Quantity:
5 510
Company:
Part Number:
CS4299-JQEP
Manufacturer:
ST
Quantity:
5 510
Company:
Part Number:
CS4299-JQEP
Manufacturer:
CRYSTAL
Quantity:
210
Part Number:
CS4299-JQEP
Manufacturer:
CRYSTAL
Quantity:
20 000
Part Number:
CS4299-JQZ
Manufacturer:
CIRRUS
Quantity:
20 000
Company:
Part Number:
CS4299-JQZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
6.1.5
One application of the PHONE input is to interface
to the output of a modem analog front end (AFE)
device so that modem dialing signals and protocol
negotiations may be monitored through the audio
system. Figure 16 shows a design for a modem
connection where the output is fed from the
CS4299 MONO_OUT pin through a divider. The
divider ratio shown does not attenuate the signal,
providing an output voltage of 1 V
output voltage is desired, the resistors can be re-
placed with appropriate values, as long as the total
load on the output is kept greater than 10 kΩ. The
PHONE input is divided by 6 dB to accommodate
a line-level source of 2 V
6.2
The analog line-level output section provides two
stereo
LINE_OUT_L/R,
38
38
MONO_OUT
PHONE
Analog Outputs
outputs
Phone Input
Figure 16. Modem Connection
6.8 kΩ
0 Ω
ALT_LINE_OUT_R
ALT_LINE_OUT_L
and
ALT_LINE_OUT_L/R,
AGND
6.8 kΩ
a
RMS
Figure 17. Alternate Line Output as Headphone Output
Vrefout
1.0 µ F
mono
.
47 kΩ
1.0 µ F
AGND
1000 pF
NPO
RMS
AGND
1000 pF
output.
. If a lower
1000 pF
NPO
PHONE
MONO_OUT
27 kΩ
27 kΩ
The
and
2
3
5
6
TDA1308
+
+
-
-
39 kΩ
39 kΩ
22 pF
NPO
22 pF
NPO
1
7
MONO_OUT pins require 680 pF to 1000 pF NPO
capacitors between the corresponding pin and ana-
log ground. Each analog output is DC-biased up to
the Vrefout signal reference, nominally 2.3 V. This
requires the outputs be AC-coupled to external cir-
cuitry (AC load must be greater than 10 kΩ) or DC
coupled to a buffer op-amp biased at Vrefout.
6.2.1
See Figure 18 for a line-level stereo output refer-
ence design. See Figure 17 for a recommended
headphone stereo output reference design.
6.2.2
The mono output, MONO_OUT, can be either a
sum of the left and right output channels, attenuat-
ed by 6 dB to prevent clipping at full scale, or the
selected Mic signal. The mono out channel can
drive the PC internal mono speaker using an appro-
priate buffer circuit
+
+
220 µ F
220 µ F
ELEC
ELEC
ALT_LINE_OUT_R
47 kΩ
ALT_LINE_OUT_L
VREFOUT
Stereo Outputs
Mono Output
AGND
1000 pF
0.1 µF
NPO
Y5V
47 kΩ
10 Ω
1/4 Watt
1/4 Watt
Figure 18. Stereo Output
10 Ω
AGND
AGND
1000 pF
NPO
1 µF
1
2
27 kΩ
4
3
Headphone
Out
2
3
1
2
6
5
-
+
-
+
39 kΩ
22 pF
NPO
22 pF
NPO
TDA1308
TDA1308
4
3
1
7
220 µF
220 µF
ELEC
ELEC
+
+
AGND
4
1
CS4299
3
2
CS4299
1/4 WATT
1/4 WATT
47 kΩ
DS319PP6
10 Ω
10 Ω
HP_OUT_R
HP_OUT_L