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Número de pieza | TDA9935 | |
Descripción | Dual 14-bit up to 160 Msample/s 2 interpolating Digital-to-Analog Converter | |
Fabricantes | NXP Semiconductors | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TDA9935 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
No Preview Available ! TDA9935
www.DataSheet4U.com
Dual 14-bit, up to 160 Msample/s, 2 × interpolating
Digital-to-Analog Converter (DAC)
Rev. 04 — 17 September 2007
Product data sheet
1. General description
The TDA9935 is optimized to reduce architecture complexity and overall system cost.
Thanks to its direct IF conversion capabilities, it leads dynamic performance in
multi-carrier support. With an internal sampling rate up to 160 Msample/s, TDA9935 is an
extremely competitive solution for WCDMA, CDMA2000 and GSM/EDGE transmitters, as
well as high data rate radio services like WLL, LMDS and BWA.
2. Features
I Dual 14-bit resolution
I SFDR = 80 dBc at 2.5 MHz
I Input data rate up to 80 Msample/s
I 2 × interpolation filter
I Output data rate up to 160 Msample/s
I Single 3.3 V power supply
I Low noise capacitor-free integrated PLL
I Low power dissipation
I HTQFP80 package
I Ambient temperature from −40 °C to +85 °C
3. Applications
I Broadband wireless systems
I Digital radio links
I Cellular base stations
I Instrumentation
1 page NXP Semiconductors
TDA9935www.DataSheet4U.com
Dual 14-bit, up to 160 Msample/s, 2 × interpolating DAC
Table 2. Pin description …continued
Symbol
Pin Type[1] Description
VCCD
DGND
51 S
52 G
digital supply voltage
digital ground
DGND
53 G
digital ground
DGND
54 G
digital ground
DGND
55 G
digital ground
DGND
56 G
digital ground
GAPD
57 I
internal band gap power disable input
GAPOUT
58 I/O band gap output voltage
QVIRES
59 I
Q DAC biasing resistor
IVIRES
60 I
I DAC biasing resistor
VCCA
AGND
61 S
62 G
analog supply voltage
analog ground
DEC
63 O
decoupling node
AGND
64 G
analog ground
VCCA
AGND
65 S
66 G
analog supply voltage
analog ground
AGND
67 G
analog ground
QOUTN
68 O
complementary Q DAC output current
QOUT
69 O
Q DAC output current
AGND
70 G
analog ground
AGND
71 G
analog ground
IOUTN
72 O
complementary I DAC output current
IOUT
73 O
I DAC output current
AGND
74 G
analog ground
AGND
75 G
analog ground
VCCA
AGND
76 S
77 G
analog supply voltage
analog ground
DEC
78 O
decoupling node
AGND
79 G
analog ground
VCCA
80 S
analog supply voltage
[1] Type description:
S: Supply;
G: Ground;
I: Input;
O: Output.
TDA9935_4
Product data sheet
Rev. 04 — 17 September 2007
© NXP B.V. 2007. All rights reserved.
5 of 18
5 Page NXP Semiconductors
TDA9935www.DataSheet4U.com
Dual 14-bit, up to 160 Msample/s, 2 × interpolating DAC
20
output
(dB)
−20
−60
−100
−140
001aab122
0.6
normalized output
0.4
0.2
0
001aab123
−180
0
0.2 0.4 0.6 0.8 1.0
normalized frequency (fOUT/fCLK)
Fig 6. FIR filter frequency response
−0.2
0
10 20 30 40
t (sample)
Fig 7. FIR filter impulse response
Table 7. Interpolation FIR filter coefficient
Coefficient
Coefficient
H(1) H(43)
H(2) H(42)
H(3) H(41)
H(4) H(40)
H(5) H(39)
H(6) H(38)
H(7) H(37)
H(8) H(36)
H(9) H(35)
H(10)
H(34)
H(11)
H(33)
H(12)
H(32)
H(13)
H(31)
H(14)
H(30)
H(15)
H(29)
H(16)
H(28)
H(17)
H(27)
H(18)
H(26)
H(19)
H(25)
H(20)
H(24)
H(21)
H(23)
H(22)
-
Value
10
0
−31
0
69
0
−138
0
248
0
−419
0
678
0
−1 083
0
1 776
0
−3 282
0
10 364
16 384
TDA9935_4
Product data sheet
Rev. 04 — 17 September 2007
© NXP B.V. 2007. All rights reserved.
11 of 18
11 Page |
Páginas | Total 18 Páginas | |
PDF Descargar | [ Datasheet TDA9935.PDF ] |
Número de pieza | Descripción | Fabricantes |
TDA9935 | Dual 14-bit up to 160 Msample/s 2 interpolating Digital-to-Analog Converter | NXP Semiconductors |
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