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参数资料
| 型号： | TZA1025T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | Data amplifier and laser supply circuit for CD audio and video optical systems ADALASLC |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 文件页数： | 14/16页 |
| 文件大小： | 99K |
| 代理商： | TZA1025T |
1998 Oct 30
7
Philips Semiconductors
Product specication
Data amplier and laser supply circuit for CD
audio and video optical systems (ADALASLC)
TZA1025
CHARACTERISTICS
VDD = 2.4 V; VDD(L) Vo(LASER) = 0.55 V; Ii(DIN) = 0 mA; Io(LASER) = 80 mA; VCMFB = 12VDD; PWRON = HIGH;
CDRW = LOW; CCFIL = 10 nF; RRFFB =10k; pin RGADJ connected to ground; Tamb =25 °C; unless otherwise
specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VDD
supply voltage
2.4
5.5
V
VDDL(L)
laser supply voltage
2.4
5.5
V
IDD
supply current
3
mA
Iq
quiescent supply
current
PWRON = LOW
40
A
RF amplier
Ii(DIN)
central diode input
current
70
+70
A
Zi(DIN)
central diode input
impedance
100
VCMFB
common mode
feedback input voltage
0.7
1
2VDD
VDD 0.4
V
VO(RFEQO)
RF amplier output
DC-level
CDRW = LOW
VCMFB 0.05
VCMFB + 0.25 V
CDRW = HIGH
VCMFB 0.35
VCMFB + 0.35 V
Vo(RFEQO)
RF amplier output
voltage
0.25
VDD 0.25
V
Zo(RFEQO)
RF amplier output
impedance
note 1
100
td(f)(RF)
RF atness delay
10
ns
GRF
RF path gain boost
f = 720 kHz; note 2
5
dB
Ztr(RF)
RF transimpedance
note 3
CDRW = LOW
9.2
9.8
10.4
k
CDRW = HIGH
35.6
38
40.4
k
THDRF
RF total harmonic
distortion
note 4
50
dB
PSRRRF
RF power supply ripple
rejection
0 to 100 kHz
40
dB
Vn(in-band)(rm
s)
in-band noise
(RMS value)
note 4
2.7
mV
Laser supply circuit
Vdrop
drop voltage
note 5
0.55
5.5
V
Io(LASER)(max
)
maximum laser output
current
Vdrop = 0.55 V; note 6 80
mA
Zo(LASER)
laser output impedance Vdrop = 0.55 V; note 7
Io(LASER) =53mA
500
Io(LASER) =20mA
1200
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